{"title":"Sirris","description":"\u003cp\u003eShop Sirris suspension upgrades for Sur-Ron, Talaria, E Ride Pro, Ventus One+ and Zero XB electric dirt bikes. Sirris designs premium e-moto forks and shocks optimized for aggressive riding styles.\u003c\/p\u003e","products":[{"product_id":"sirris-f43-fork-suspension-upgrade-surron-ultra-bee","title":"Sirris F43 Fork Suspension Upgrade For Surron Ultra Bee","description":"\u003cp\u003eUnleash your true speed potential with the Sirris F43 Fork suspension upgrade for Surron Ultra Bee electric dirt bikes. Engineered with precision for e-moto, its purpose-tuned design and pressure-balanced architecture deliver unmatched responsiveness and control. Featuring 246mm of ultra-plush travel, the Sirris F43 Fork embodies the essence of genuine e-moto design for aggressive riding styles.\u003cbr\u003e\u003cbr\u003eChoose your tune and customize your Surron Ultra Bee suspension with the ultimate fork upgrade and unlock a new level of performance.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 style=\"font-size: 1.3em;\"\u003eSirris F43 Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAvailable Tunes: Trail | MX | SX | EBMX\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eclick \"Tunes\" tab above for details\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eFully Adjustable Compression, Rebound, And Preload\u003c\/li\u003e\n\u003cli\u003eCustom Spring Rates for All Riding Styles and Rider Sizes\u003c\/li\u003e\n\u003cli\u003eTrue Symmetrical Closed Cartridge Design For Balanced Performance\u003c\/li\u003e\n\u003cli\u003eReliable Predictability + Fade-Free Responsiveness with Every Ride\u003c\/li\u003e\n\u003cli\u003eHydraulic Bump Stop for Soft Landings at Max Stroke\u003c\/li\u003e\n\u003cli\u003e246mm of Increased Travel (6mm more than stock) adds cushioning for aggressive riding\u003c\/li\u003e\n\u003cli\u003eDual Oil Circuits for Maximum Damping Performance\u003c\/li\u003e\n\u003cli\u003eCartridge Bodies \/ Outer Tubes Made from 7000 Series Aluminum for Max Strength\u003c\/li\u003e\n\u003cli\u003eFinished in Type 3 Hard Anodization for Scratch Resistance + Durability\u003c\/li\u003e\n\u003cli\u003e43mm Hard-Chrome Stanchions + Wrap-Around Guards Maintain Optimal Performance\u003c\/li\u003e\n\u003cli\u003eHigh-Tensile, Lightweight Springs: 8.8 lbs (4 kg) per leg for standard config.\u003c\/li\u003e\n\u003cli\u003ePlug-And-Play Easy Installation - No Additional Mods or Parts Required\u003c\/li\u003e\n\u003cli\u003eIncludes Dust Seal + Headset Bearing Already Installed on Steerer Tube\u003c\/li\u003e\n\u003cli\u003eTriple Clamps + Guards Perfectly Fit Surron Ultra Bee Fairing \/ Cable Routing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding: 20px 0;\"\u003e\u003ciframe height=\"315\" width=\"560\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/n4_QaBwQrRE?si=A0Y4OG3LUhsGpS_g\u0026amp;rel=0\" title=\"Introducing Sirris Suspension | The Ultimate E-Moto Upgrade\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp style=\"border-left: 2px solid #777; padding-left: 10px;\"\u003e\u003cstrong\u003eThe Perfect Pair:\u003c\/strong\u003e \u003ca href=\"https:\/\/darwinev.com\/product\/sirris-r46-shock-suspension-upgrade-surron-ultra-bee\/\"\u003eSirris R46 Rear Shock\u003c\/a\u003e in addition to the Sirris F43 Fork together make the ultimate suspension package for Surron Ultra Bee. Pressure balanced. Fully adjustable. Optimized for E-Moto. Revolutionize your bike's potential with harmonized suspension performance, front and back.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 1.3em;\"\u003eTrue Symmetrical Closed Cartridge Design\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eBalanced Performance:\u003c\/strong\u003e  The Sirris F43 Suspension Fork is engineered for balanced load, race-ready handling, and high performance. With its closed-cartridge suspension system, you can expect reliable predictability and fade-free responsiveness with every ride.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHydraulic Bump Stop:  \u003c\/strong\u003eExperience soft landings at max stroke with the F43 Fork, even during the most severe impacts.\u003cbr\u003e\u003c\/p\u003e\n\u003ch5 style=\"font-size: 1.3em;\"\u003eUncompromised Suspension Quality\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eDual Oil Circuits for Optimum Performance:\u003c\/strong\u003e The damping system is optimized for maximum effectiveness by completely separating the lubrication and damping oils.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh-Quality Materials + Surface Treatment:\u003c\/strong\u003e All cartridge bodies and outer tubes are fabricated from high-strength 7000 series aluminum for maximum structural integrity. The F43 Fork is finished in type 3 hard anodization for scratch resistance and durability. Hard-chrome stanchions and wrap-around guards maintain optimal performance for the long haul.\u003cbr\u003e\u003c\/p\u003e\n\u003ch6 style=\"font-size: 1.3em;\"\u003eFully Tunable For Every Rider \u0026amp; Riding Style\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eUltimate Front Suspension Tuning:\u003c\/strong\u003e Customize your front suspension performance with fully-tunable valving for compression and rebound. The spring rates of the Sirris F43 Fork suspension are matched to your weight and riding type. Easily adjust your setup for various terrains and ride types to enhance your overall riding experience.\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable compression, rebound, and preload\u003c\/li\u003e\n\u003cli\u003eCustom spring rates for all riding styles and rider sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch6 style=\"font-size: 1.3em;\"\u003eSirris F43 Fork Suspension Installation\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003ePlug-And-Play:\u003c\/strong\u003e Upgrade your stock Surron Ultra Bee effortlessly with a direct-swap front suspension system. No additional modifications or parts are required. The Sirris F43 Fork includes a dust seal and headset bearing already installed on the steerer tube for quick and easy installation.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOEM Surron Ultra Bee Compatibility:\u003c\/strong\u003e The triple clamps and guards perfectly align with the Ultra Bee fairing and cable routing. Additionally, the Sirris Fork upgrade is compatible with the Ultra Bee stock display, fender, and brake as well.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation:\u003c\/strong\u003e The Sirris F43 Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-owners-guide-021126.pdf?v=1771029348\" target=\"_blank\"\u003eSirris Suspension Owner’s Manual (PDF) ›\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv style=\"padding: 20px 0;\"\u003e\u003ciframe height=\"315\" width=\"560\" src=\"https:\/\/www.youtube.com\/embed\/r7KLAL-aKxI?si=MIdsCmfdKJX7ccTp\u0026amp;rel=0\" title=\"Quick Install Guide: Sirris F43 for Surron Ultra Bee\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Sirris","offers":[{"title":"Trail Tune \/ Light \/ Black","offer_id":50546838864168,"sku":"SIR-F43-UB-T-L","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Trail Tune \/ Medium \/ Black","offer_id":50546838896936,"sku":"SIR-F43-UB-T-M","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Trail Tune \/ Heavy \/ Black","offer_id":50546838929704,"sku":"SIR-F43-UB-T-H","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Trail Tune \/ X Heavy \/ Black","offer_id":50546838962472,"sku":"SIR-F43-UB-T-X","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Trail Tune \/ XX Heavy \/ Black","offer_id":50546838995240,"sku":"SIR-F43-UB-T-XX","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Trail Tune \/ XXX Heavy \/ Black","offer_id":50546839028008,"sku":"SIR-F43-UB-T-XXX","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"MX Tune \/ Light \/ Black","offer_id":50546839060776,"sku":"SIR-F43-UB-MX-L","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"MX Tune \/ Medium \/ Black","offer_id":50546839093544,"sku":"SIR-F43-UB-MX-M","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"MX Tune \/ Heavy \/ Black","offer_id":50546839126312,"sku":"SIR-F43-UB-MX-H","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"MX Tune \/ X Heavy \/ Black","offer_id":50546839159080,"sku":"SIR-F43-UB-MX-X","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"MX Tune \/ XX Heavy \/ Black","offer_id":50546839191848,"sku":"SIR-F43-UB-MX-XX","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"SX Tune \/ Light \/ Black","offer_id":50546839224616,"sku":"SIR-F43-UB-SX-L-BLK","price":2550.0,"currency_code":"USD","in_stock":true},{"title":"SX Tune \/ Light \/ Blue","offer_id":50546838765864,"sku":"SIR-F43-UB-SX-L-BLU","price":2550.0,"currency_code":"USD","in_stock":true},{"title":"SX Tune \/ Light \/ Red","offer_id":50546838798632,"sku":"SIR-F43-UB-SX-L-RED","price":2550.0,"currency_code":"USD","in_stock":true},{"title":"SX Tune \/ Light \/ Gold","offer_id":50546838831400,"sku":"SIR-F43-UB-SX-L-GLD","price":2550.0,"currency_code":"USD","in_stock":true},{"title":"SX Tune \/ Medium \/ Black","offer_id":50546839257384,"sku":"SIR-F43-UB-SX-M-BLK","price":2550.0,"currency_code":"USD","in_stock":true},{"title":"SX Tune \/ Medium \/ Blue","offer_id":50546839290152,"sku":"SIR-F43-UB-SX-M-BLU","price":2550.0,"currency_code":"USD","in_stock":true},{"title":"SX Tune \/ Medium \/ Red","offer_id":50546839322920,"sku":"SIR-F43-UB-SX-M-RED","price":2550.0,"currency_code":"USD","in_stock":true},{"title":"SX Tune \/ Medium \/ Gold","offer_id":50546839355688,"sku":"SIR-F43-UB-SX-M-GLD","price":2550.0,"currency_code":"USD","in_stock":true},{"title":"EBMX Tune \/ Light \/ Black","offer_id":50546839388456,"sku":"SIR-F43-UB-EBMX-L","price":2250.0,"currency_code":"USD","in_stock":false},{"title":"EBMX Tune \/ Medium \/ Black","offer_id":50546839421224,"sku":"SIR-F43-UB-EBMX-M","price":2250.0,"currency_code":"USD","in_stock":false},{"title":"EBMX Tune \/ Heavy \/ Black","offer_id":50546839453992,"sku":"SIR-F43-UB-EBMX-H","price":2250.0,"currency_code":"USD","in_stock":false},{"title":"EBMX Tune \/ X Heavy \/ Black","offer_id":50546839486760,"sku":"SIR-F43-UB-EBMX-X","price":2250.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-Fork-Suspension-front.jpg?v=1755507981"},{"product_id":"sirris-r46-shock-suspension-upgrade-surron-ultra-bee","title":"Sirris R46 Shock Suspension Upgrade For Surron Ultra Bee","description":"\u003cp\u003eThe Sirris R46 Shock is a rear suspension upgrade designed specifically for Surron Ultra Bee electric dirt bike. Engineered for exceptional e-moto performance, the R46 Shock features fully-adjustable compression and rebound. Additionally, its Dual Speed Compression (DSC) design isolates high and low speed adjustment for a wide-range of precise control.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 style=\"font-size: 1.3em;\"\u003eSirris R46 Rear Shock Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSpecifically Engineered For E-Moto (Surron Ultra Bee)\u003c\/li\u003e\n\u003cli\u003eFully-Adjustable Compression and Rebound Valving\u003c\/li\u003e\n\u003cli\u003eHigh-Tensile Steel Spring Rates Tailored To Rider Weight + Riding Style\u003c\/li\u003e\n\u003cli\u003eDual Speed Compression (DSC) for High Speed \/ Low Speed Precision Control\u003c\/li\u003e\n\u003cli\u003eExceptional Responsiveness for Performance Riders\u003c\/li\u003e\n\u003cli\u003eType 3 Hard Anodized, High-Durability Surface Finishing\u003c\/li\u003e\n\u003cli\u003eInduction Heat Treated, Hard Chrome Hollow Shaft\u003c\/li\u003e\n\u003cli\u003eFully Serviceable Design for Easy Rebuilds + Custom Tuning\u003c\/li\u003e\n\u003cli\u003eDirect-Swap, Easy Installation\u003c\/li\u003e\n\u003cli\u003eLightweight: 3.9 lbs (1.76 kg) + Spring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"padding: 20px 0;\"\u003e\u003ciframe title=\"Introducing Sirris Suspension | The Ultimate E-Moto Upgrade\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/n4_QaBwQrRE?si=A0Y4OG3LUhsGpS_g\u0026amp;rel=0\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp style=\"border-left: 2px solid #777; padding-left: 10px;\"\u003e\u003cstrong\u003eThe Perfect Pair:\u003c\/strong\u003e  \u003ca href=\"\/products\/sirris-f43-fork-suspension-upgrade-surron-ultra-bee\"\u003eSirris F43 Fork\u003c\/a\u003e, in addition to the Sirris R46 Rear Shock, together make the ultimate suspension package for Surron Ultra Bee. Pressure balanced. Fully adjustable. Optimized for E-Moto. Revolutionize your bike's potential with harmonized suspension performance, front and back.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 1.3em;\"\u003eUncompromised Suspension Technology\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDSC (Dual Speed Compression):\u003c\/strong\u003e The R46 Shock provides a wide-ranging adjustment capability with its DSC technology which effectively isolates high-speed and low-speed circuits, enabling precise adjustment control.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 style=\"font-size: 1.3em;\"\u003eExceptional Responsiveness\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eUltimate Tunable Customization:\u003c\/strong\u003e Tune your rear suspension system with fully adjustable compression and rebound valving, with spring rates tailored to your specific rider weight and riding style. You can easily modify your shock suspension setup for different types of rides, enhancing control and overall riding experience.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDesigned For You:\u003c\/strong\u003e With its high-tensile steel spring rate options, the Sirris R46 Shock is tailored to your rider weight up to 300 lbs (135 kg), customizable for any rider styles and conditions.\u003cbr\u003e\u003c\/p\u003e\n\u003ch5 style=\"font-size: 1.3em;\"\u003eBuilt For Longevity\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Durability Surface Finishing:\u003c\/strong\u003e Type 3 hard anodized body cap, body, reservoir, end cap, spring hardware, and clevis adds to its durability. The hard chrome hollow shaft is induction heat treated, ensuring longevity. Even after thousands of miles, the Sirris Rear Shock is constructed to maintain its pristine appearance.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eExtremely Easy to Rebuild:\u003c\/strong\u003e Fully serviceable design ensures easy rebuilds and custom tuning.\u003cbr\u003e\u003c\/p\u003e\n\u003ch6 style=\"font-size: 1.3em;\"\u003eSirris R46 Shock Suspension Installation\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Swap:\u003c\/strong\u003e Easy installation, 320 mm length (85 mm stroke), bolts directly onto a stock Surron Ultra Bee.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-owners-guide-021126.pdf?v=1771029348\" rel=\"noopener\" target=\"_blank\"\u003eSirris Suspension Owner’s Manual (PDF) ›\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSurron Ultra Bee Rear Triangle Fitment:\u003cbr\u003e\u003c\/strong\u003eFor guaranteed fitment on your Surron Ultra Bee, we highly recommend installing the Sirris Rear Triangle during shock installation. The Sirris Shock is designed to offer the maximum possible piston size while still fitting within the stock linkage. Tolerances on each stock Ultra Bee vary. Light contact between spring OD and stock triangle may occur. We highly recommend our higher clearance triangle to prevent this.\u003cbr\u003e\u003cbr\u003eWARNING: Some aftermarket triangle links may have significant interference that could damage the shock and\/or triangle. It’s important to check clearance as you assemble and cycle the suspension. Do not install the Sirris Shock if any interference is detected. Failure to properly install the shock with proper triangle can lead to a loss of control of the motorcycle which can result in SERIOUS INJURY OR DEATH.\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"padding: 20px 0;\"\u003e\u003ciframe title=\"Quick Install Guide: Sirris F43 for Surron Ultra Bee\" src=\"https:\/\/www.youtube.com\/embed\/oG6-nljw9BM?si=r9uAOqXRtJvpl6Sl\u0026amp;rel=0\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Sirris","offers":[{"title":"Trail \/ Light","offer_id":50713671663912,"sku":"SIR-R46-UB-T-L","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Trail \/ Medium","offer_id":50713671696680,"sku":"SIR-R46-UB-T-M","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Trail \/ Heavy","offer_id":50713671729448,"sku":"SIR-R46-UB-T-H","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Trail \/ X-Heavy","offer_id":50713671762216,"sku":"SIR-R46-UB-T-X","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Trail \/ XX-Heavy","offer_id":50713671794984,"sku":"SIR-R46-UB-T-XX","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Trail \/ XXX-Heavy","offer_id":50713671827752,"sku":"SIR-R46-UB-T-XXX","price":899.0,"currency_code":"USD","in_stock":true},{"title":"MX \/ Light","offer_id":50713671860520,"sku":"SIR-R46-UB-MX-L","price":899.0,"currency_code":"USD","in_stock":true},{"title":"MX \/ Medium","offer_id":50713671893288,"sku":"SIR-R46-UB-MX-M","price":899.0,"currency_code":"USD","in_stock":true},{"title":"MX \/ Heavy","offer_id":50713671926056,"sku":"SIR-R46-UB-MX-H","price":899.0,"currency_code":"USD","in_stock":true},{"title":"MX \/ X-Heavy","offer_id":50713671958824,"sku":"SIR-R46-UB-MX-X","price":899.0,"currency_code":"USD","in_stock":true},{"title":"MX \/ XX-Heavy","offer_id":50713671991592,"sku":"SIR-R46-UB-MX-XX","price":899.0,"currency_code":"USD","in_stock":true},{"title":"SX \/ Light","offer_id":50713672024360,"sku":"SIR-R46-UB-SX-L","price":899.0,"currency_code":"USD","in_stock":true},{"title":"SX \/ Medium","offer_id":50713672057128,"sku":"SIR-R46-UB-SX-M","price":899.0,"currency_code":"USD","in_stock":true},{"title":"EBMX \/ Light","offer_id":50713672089896,"sku":"SIR-R46-UB-EBMX-L","price":899.0,"currency_code":"USD","in_stock":false},{"title":"EBMX \/ Medium","offer_id":50713672122664,"sku":"SIR-R46-UB-EBMX-M","price":899.0,"currency_code":"USD","in_stock":false},{"title":"EBMX \/ Heavy","offer_id":50713672155432,"sku":"SIR-R46-UB-EBMX-H","price":899.0,"currency_code":"USD","in_stock":false},{"title":"EBMX \/ X-Heavy","offer_id":50713672188200,"sku":"SIR-R46-UB-EBMX-X","price":899.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-R46-Shock-Suspension-side1.jpg?v=1755508013"},{"product_id":"sirris-f43-fork-cmx-tune-e-ride-pro-sr","title":"Sirris F43 Fork CMX Tune: E Ride Pro SR","description":"\u003cp\u003eTake your E Ride Pro SR to the next level with the Sirris F43 CMX Fork. This 220mm travel fork is engineered without compromise specifically for the E Ride Pro SR for high-performance, aggressive riding. The CMX Tune (Compact Motocross) paired with the race-proven F43 platform brings elite-level suspension tech to the electric dirt bike world.\u003c\/p\u003e\n\u003cp\u003e140 lbs - 180 lbs  (Medium = 4.0\/4.0 springs)\u003cbr\u003e180 lbs - 220 lbs  (Heavy = 4.4\/4.0 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left side\/right side\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eSee Fork \u0026amp; Shock Tuning Recommendations Chart below.\u003c\/p\u003e\n\u003ch2\u003eSirris F43 CMX Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e220mm Travel — (17mm more than stock) adds cushioning for aggressive riding\u003c\/li\u003e\n\u003cli\u003eTool-Free Compression Adjusters — for quicker changes during mid ride without any tools needed\u003c\/li\u003e\n\u003cli\u003e178mm Fork Spacing — allows unlimited tire selection from aggressive knobby to supermoto treads\u003c\/li\u003e\n\u003cli\u003eDrop Clamp Option for 21\" Wheels — allows for fitment of 21” wheel by raising the front end an additional 25mm while retaining 220mm travel \u003cem\u003e(raising the front end maintains balance of the bike if paired with a longer shock that raises the rear)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eScalloped Clamps — for aggressive, trick styling\u003c\/li\u003e\n\u003cli\u003eDirect Mount Stem (DM Ready) — lightweight billet clamps with DM stem designed for hassle-free setup (no extra parts needed)\u003c\/li\u003e\n\u003cli\u003eAxle \u0026amp; Brake Mounts — ultra-stiff and configurable\n\u003cul\u003e\n\u003cli\u003eAxle and drop out assembly promotes front-end feel and steering precision\u003c\/li\u003e\n\u003cli\u003eUniversal lugs, custom axle spacers and new brake mounts allow for easier stocking, and allows rider greater wheel and brake options\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow for caliper upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSymmetrical Closed Cartridge Dampers — specifically tuned for each model, and fully tunable for spring rate and damping for balanced performance\u003c\/li\u003e\n\u003cli\u003eMotorcycle-Style Top Cap — increases ability to tension steering bearings and retain torque\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eOEM E Ride Pro SR Compatibility\u003cbr\u003e\u003c\/span\u003eThe triple clamps and guards perfectly align with the E Ride Pro SR fairing and cable routing. Additionally, the CMX F43 Fork upgrade is compatible with the E Ride Pro SR stock display, fender, and brake as well.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eShock Suspension Pairing\u003cbr\u003e\u003c\/span\u003eFor optimal bike performance, we recommend using an \u003ca href=\"\/products\/ext-arma-e-mx-rear-shock-damper-sur-ron-segway-talaria\/\"\u003eEXT Arma Shock,\u003c\/a\u003e \u003ca href=\"\/products\/ohlins-shock-absorber-ttx22m-ext-spring-450-500-550\/\"\u003eOhlins TTX22M with EXT Spring\u003c\/a\u003e, or equivalent. Spring Weights: Medium Tune (500 lbs) \/ Heavy Tune (550 lbs) - \u003cem\u003esee tuning recommendations below\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eF43 CMX Fork Specs\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eUpside down fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTravel\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree length\u003c\/td\u003e\n\u003ctd\u003e775mm (drop clamp option adds another 25mm of extended length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork Spacing\u003c\/td\u003e\n\u003ctd\u003e178mm - allows for unlimited tire choice (dirt or street)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork weight\u003c\/td\u003e\n\u003ctd\u003e4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanchions\u003c\/td\u003e\n\u003ctd\u003e43mm - high tensile steel with hard chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter tubes\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrop outs\u003c\/td\u003e\n\u003ctd\u003e6061 aluminum, type 2 anodized coating Replaceable caliper mount brackets allow for caliper and wheel upgrades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eUltra-high tensile hard chromed axle increases steering precision and confidence\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriple clamps\u003c\/td\u003e\n\u003ctd\u003eBillet 6061 aluminum, type 2 anodized coating, 2 color options (blue, black) Optional drop clamp allows for 21” front wheel conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteer tube\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping\u003c\/td\u003e\n\u003ctd\u003eSymmetrical, adjustable closed cartridge with spring backed modified IFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper bodies\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound\u003c\/td\u003e\n\u003ctd\u003eDual side high tensile steel spring, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjusters\u003c\/td\u003e\n\u003ctd\u003eExternal tool-free compression, rebound adjustment (rebound adjusted using tool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeals\u003c\/td\u003e\n\u003ctd\u003eNOK MX seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBushings\u003c\/td\u003e\n\u003ctd\u003eDaido MX bushings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuards\u003c\/td\u003e\n\u003ctd\u003eHigh impact PP, 210° wraparound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eCMX Tuning Details \u0026amp; Rider Weight Ranges\u003c\/h4\u003e\n\u003cp\u003eSirris offers 2 weight ranges to choose from when selecting your CMX Tune F43 Fork. Listed weight ranges are body weight with 15 lbs of riding gear. Weights of upgrades (e.g. battery, controller, motor) need to be added to rider weight.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 254.8px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"height: 19.6px;\"\u003eFORK Recommendations\u003c\/th\u003e\n\u003cth style=\"height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4.0\/4.0\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4.4\/4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e8\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e18\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e18\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e120cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eHeadset Spacer \u003cspan style=\"font-size: .8em;\"\u003e1mm thick washer beneath seal, PN 430-38-017\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eSteerer Spacer \u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-38-018 x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eCaliper Bracket\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-22-034, 99.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-28-016 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 240.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 48.0833px;\"\u003eSHOCK (EXT Arma) Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 48.0833px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 48.0833px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003eLSC9\/HSC7\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003eLSC9\/HSC7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e7\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e88, 500\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e96, 550\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0667px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0667px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0667px;\"\u003e4.5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0667px;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eSETTINGS: \u003c\/strong\u003eSettings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCMX Tune Starting Point:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAssuming neutral riding position, and 15 lbs gear\u003c\/li\u003e\n\u003cli\u003eWeights of upgrades (battery, controller, etc) to be added to rider weight\u003c\/li\u003e\n\u003cli\u003eRiders close to a weight cut off need to adjust preload to compensate\u003c\/li\u003e\n\u003cli\u003eVery aggressive\/pro riders to consider +1 weight class and drop preload to get sag. Especially if in the upper range.\u003c\/li\u003e\n\u003cli\u003eRider preference and riding conditions may require a different setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eExample:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e160 lb rider without riding gear, 20 additional lbs with upgraded controller\/battery\u003c\/li\u003e\n\u003cli\u003eWeight calculation 160+20=180\u003c\/li\u003e\n\u003cli\u003eAggressive rider = Heavy tune with low preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider = Medium tune with high preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSirris F43 Fork Installation\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Direct Mount Setup \u003c\/strong\u003eUpgrade your stock E Ride Pro SR easily with the direct mount front suspension system. No additional modifications or parts are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation \u003c\/strong\u003eThe Sirris F43 Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-R38-owners-guide-090226.pdf?v=1789079403\" target=\"_blank\" rel=\"noopener\"\u003eSirris F43 \u0026amp; R38 CMX Owner’s Guide (PDF) ›\u003c\/a\u003e\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Black","offer_id":50546970722600,"sku":"SIR-F43-ERSR-M-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Blue","offer_id":50546970755368,"sku":"SIR-F43-ERSR-M-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Black","offer_id":50546970820904,"sku":"SIR-F43-ERSR-M-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Black","offer_id":50546970919208,"sku":"SIR-F43-ERSR-H-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Blue","offer_id":50546970951976,"sku":"SIR-F43-ERSR-H-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Black","offer_id":50546971017512,"sku":"SIR-F43-ERSR-H-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-220-CMX-Fork_0010_black-front.jpg?v=1755508900"},{"product_id":"sirris-rear-triangle-sur-ron-ultra-bee","title":"Sirris Rear Triangle for Sur-Ron Ultra Bee","description":"\u003cp\u003eFor guaranteed fitment on your Sur-Ron Ultra Bee, we highly recommend the Sirris rear triangle installed during the \u003ca href=\"\/products\/sirris-r46-shock-suspension-upgrade-surron-ultra-bee\"\u003eR46 Shock\u003c\/a\u003e installation procedure. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStock Ultra Bee Triangle Fitment:\u003c\/strong\u003e  The Sirris Shock is designed to offer the maximum possible piston size and still fit within the stock linkage. Tolerances on each stock Ultra Bee vary. Light contact between spring OD and stock triangle may occur. We highly recommend our higher clearance triangle to prevent this.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAftermarket Ultra Bee Triangle Fitment:\u003c\/strong\u003e  Some aftermarket triangle links may have significant interference that could damage the shock and\/or triangle. It’s important to check clearance as you assemble and cycle the suspension.\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Black","offer_id":50713641255208,"sku":"SIR-TRI-UB-BLK","price":119.0,"currency_code":"USD","in_stock":false},{"title":"Blue","offer_id":50713641287976,"sku":"SIR-TRI-UB-BLU","price":119.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":50713641320744,"sku":"SIR-TRI-UB-RED","price":119.0,"currency_code":"USD","in_stock":false},{"title":"Gold","offer_id":50713641353512,"sku":"SIR-TRI-UB-GLD","price":119.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/sirris-triangle-all-colors.webp?v=1758314062"},{"product_id":"sirris-f43-fork-cmx-tune-sur-ron-light-bee-x","title":"Sirris F43 Fork CMX Tune: Surron Light Bee X","description":"\u003cp\u003eTake your Surron LBX to the next level with the Sirris F43 CMX Fork. This 220mm travel fork is engineered without compromise specifically for the Surron Light Bee X for high-performance, aggressive riding. The CMX Tune (Compact Motocross) paired with the race-proven F43 platform brings elite-level suspension tech to the electric dirt bike world.\u003c\/p\u003e\n\u003ch2\u003eSirris F43 CMX Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e220mm Travel — (17mm more than stock) adds cushioning for aggressive riding\u003c\/li\u003e\n\u003cli\u003eTool-Free Compression Adjusters — for quicker changes during mid ride without any tools needed\u003c\/li\u003e\n\u003cli\u003e178mm Fork Spacing — allows unlimited tire selection from aggressive knobby to supermoto treads\u003c\/li\u003e\n\u003cli\u003eDrop Clamp Option for 21\" Wheels — allows for fitment of 21” wheel by raising the front end an additional 25mm while retaining 220mm travel \u003cem\u003e(raising the front end maintains balance of the bike if paired with a longer shock that raises the rear)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eScalloped Clamps — for aggressive, trick styling\u003c\/li\u003e\n\u003cli\u003eDirect Mount Stem (DM Ready) — lightweight billet clamps with DM stem designed for hassle-free setup (no extra parts needed)\u003c\/li\u003e\n\u003cli\u003eAxle \u0026amp; Brake Mounts — ultra-stiff and configurable\n\u003cul\u003e\n\u003cli\u003eAxle and drop out assembly promotes front-end feel and steering precision\u003c\/li\u003e\n\u003cli\u003eUniversal lugs, custom axle spacers and new brake mounts allow for easier stocking, and allows rider greater wheel and brake options\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow for caliper upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSymmetrical Closed Cartridge Dampers — specifically tuned for each model, and fully tunable for spring rate and damping for balanced performance\u003c\/li\u003e\n\u003cli\u003eMotorcycle-Style Top Cap — increases ability to tension steering bearings and retain torque\u003c\/li\u003e\n\u003cli\u003eAvailable in MEDIUM and HEAVY tun\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eOEM Surron Light Bee X Compatibility\u003cbr\u003e\u003c\/span\u003eThe triple clamps and guards perfectly align with the Surron LBX fairing and cable routing. Additionally, the CMX F43 Fork upgrade is compatible with the Light Bee stock display, fender, and brake as well.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eShock Suspension Pairing\u003cbr\u003e\u003c\/span\u003eFor optimal bike performance, we recommend using an \u003ca href=\"\/products\/ext-arma-e-mx-rear-shock-damper-sur-ron-segway-talaria\/\"\u003eEXT Arma Shock,\u003c\/a\u003e \u003ca href=\"\/products\/ohlins-shock-absorber-ttx22m-ext-spring-450-500-550\/\"\u003eOhlins TTX22M with EXT Spring\u003c\/a\u003e, or equivalent.\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eMEDIUM TUNE FORK - Use with: 79 N\/mm (450lb) stock spring, compression 5, rebound 7, 3mm preload.\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eHEAVY TUNE FORK - Use with: 88 N\/mm (500lb) spring, compression 3, rebound 5, 3mm preload.\u003c\/p\u003e\n\u003ch3\u003eF43 CMX Fork Specs\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eUpside down fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTravel\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree length\u003c\/td\u003e\n\u003ctd\u003e775mm (drop clamp option adds another 25mm of extended length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork Spacing\u003c\/td\u003e\n\u003ctd\u003e178mm - allows for unlimited tire choice (dirt or street)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork weight\u003c\/td\u003e\n\u003ctd\u003e4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanchions\u003c\/td\u003e\n\u003ctd\u003e43mm - high tensile steel with hard chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter tubes\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrop outs\u003c\/td\u003e\n\u003ctd\u003e6061 aluminum, type 2 anodized coating Replaceable caliper mount brackets allow for caliper and wheel upgrades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eUltra-high tensile hard chromed axle increases steering precision and confidence\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriple clamps\u003c\/td\u003e\n\u003ctd\u003eBillet 6061 aluminum, type 2 anodized coating, 2 color options (blue, black) Optional drop clamp allows for 21” front wheel conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteer tube\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping\u003c\/td\u003e\n\u003ctd\u003eSymmetrical, adjustable closed cartridge with spring backed modified IFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper bodies\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound\u003c\/td\u003e\n\u003ctd\u003eDual side high tensile steel spring, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjusters\u003c\/td\u003e\n\u003ctd\u003eExternal tool-free compression, rebound adjustment (rebound adjusted using tool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeals\u003c\/td\u003e\n\u003ctd\u003eNOK MX seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBushings\u003c\/td\u003e\n\u003ctd\u003eDaido MX bushings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuards\u003c\/td\u003e\n\u003ctd\u003eHigh impact PP, 210° wraparound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eCMX Tuning Details \u0026amp; Rider Weight Ranges\u003c\/h4\u003e\n\u003cp\u003eSirris offers 2 weight ranges to choose from when selecting your CMX Tune F43 Fork for Surron LBX. Listed weight ranges are body weight with 15 lbs of riding gear. Weights of upgrades (e.g. battery, controller, motor) need to be added to rider weight.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cbr\u003e\u003c\/th\u003e\n\u003cth\u003eMedium\u003c\/th\u003e\n\u003cth\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd\u003e140-180\u003c\/td\u003e\n\u003ctd\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd\u003e3.6\/3.2\u003c\/td\u003e\n\u003ctd\u003e3.6\/3.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Setting\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound Setting\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd\u003e5\/5\u003c\/td\u003e\n\u003ctd\u003e5\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd\u003e100cc\u003c\/td\u003e\n\u003ctd\u003e110cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd\u003e20\/5\u003c\/td\u003e\n\u003ctd\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadset Spacer \u003cspan style=\"font-size: .8em;\"\u003e1mm thick washer beneath seal, PN 430-38-017\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"text-align: center;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteerer Spacer \u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"text-align: center;\"\u003e430-38-018 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliper Bracket\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"text-align: center;\"\u003e430-22-032, 74mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"text-align: center;\"\u003e430-28-016 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 240.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 48.0833px;\"\u003eSHOCK (Stock) Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 48.0833px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 48.0833px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e7\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e79, 450\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e88, 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0667px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0667px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0667px;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0667px;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eSETTINGS: \u003c\/strong\u003eSettings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCMX Tune Starting Point:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAssuming neutral riding position, and 15 lbs gear\u003c\/li\u003e\n\u003cli\u003eWeights of upgrades (battery, controller, etc) to be added to rider weight\u003c\/li\u003e\n\u003cli\u003eRiders close to a weight cut off need to adjust preload to compensate\u003c\/li\u003e\n\u003cli\u003eVery aggressive\/pro riders to consider +1 weight class and drop preload to get sag. Especially if in the upper range.\u003c\/li\u003e\n\u003cli\u003eRider preference and riding conditions may require a different setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eExample:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e160 lb rider without riding gear, 20 additional lbs with upgraded controller\/battery\u003c\/li\u003e\n\u003cli\u003eWeight calculation 160+20=180\u003c\/li\u003e\n\u003cli\u003eAggressive rider = Heavy tune with low preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider = Medium tune with high preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSirris F43 Fork Installation\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Direct Mount Setup \u003c\/strong\u003eUpgrade your stock Surron Light Bee X easily with the direct mount front suspension system. No additional modifications or parts are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation \u003c\/strong\u003eThe Sirris F43 Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2025-CMX-owners-guide.pdf?v=1756496096\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-R38-owners-guide-090226.pdf?v=1789079403\" rel=\"noopener\" target=\"_blank\"\u003eSirris F43 \u0026amp; R38 CMX Owner’s Guide (PDF) ›\u003c\/a\u003e\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Black","offer_id":50776534516008,"sku":"SIR-F43-LB-M-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Blue","offer_id":50776534548776,"sku":"SIR-F43-LB-M-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Black","offer_id":50776534581544,"sku":"SIR-F43-LB-M-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Black","offer_id":50776534647080,"sku":"SIR-F43-LB-H-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Blue","offer_id":50776534679848,"sku":"SIR-F43-LB-H-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Black","offer_id":50776534712616,"sku":"SIR-F43-LB-H-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-220-CMX-Fork_0010_black-front.jpg?v=1755508900"},{"product_id":"sirris-f43-fork-cmx-tune-talaria-mx5","title":"Sirris F43 Fork CMX Tune: Talaria MX5","description":"\u003cp\u003eTake your Talaria MX5 to the next level with the Sirris F43 CMX Fork. This 220mm travel fork is engineered without compromise specifically for the Talaria MX5 for high-performance, aggressive riding. The CMX Tune (Compact Motocross) paired with the race-proven F43 platform brings elite-level suspension tech to the electric dirt bike world.\u003c\/p\u003e\n\u003cp\u003e140 lbs - 180 lbs  (Medium = 3.6\/3.6 springs)\u003cbr\u003e180 lbs - 220 lbs  (Heavy = 4.0\/3.6 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left side\/right side.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eSee Fork \u0026amp; Shock (Stock) Tuning Recommendations Chart below.\u003c\/p\u003e\n\u003ch2\u003eSirris F43 CMX Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e220mm Travel — (17mm more than stock) adds cushioning for aggressive riding\u003c\/li\u003e\n\u003cli\u003eTool-Free Compression Adjusters — for quicker changes during mid ride without any tools needed\u003c\/li\u003e\n\u003cli\u003e178mm Fork Spacing — allows unlimited tire selection from aggressive knobby to supermoto treads\u003c\/li\u003e\n\u003cli\u003eDrop Clamp Option for 21\" Wheels — allows for fitment of 21” wheel by raising the front end an additional 25mm while retaining 220mm travel \u003cem\u003e(raising the front end maintains balance of the bike if paired with a longer shock that raises the rear)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eScalloped Clamps — for aggressive, trick styling\u003c\/li\u003e\n\u003cli\u003eDirect Mount Stem (DM Ready) — lightweight billet clamps with DM stem designed for hassle-free setup (no extra parts needed)\u003c\/li\u003e\n\u003cli\u003eAxle \u0026amp; Brake Mounts — ultra-stiff and configurable\n\u003cul\u003e\n\u003cli\u003eAxle and drop out assembly promotes front-end feel and steering precision\u003c\/li\u003e\n\u003cli\u003eUniversal lugs, custom axle spacers and new brake mounts allow for easier stocking, and allows rider greater wheel and brake options\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow for caliper upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSymmetrical Closed Cartridge Dampers — specifically tuned for each model, and fully tunable for spring rate and damping for balanced performance\u003c\/li\u003e\n\u003cli\u003eMotorcycle-Style Top Cap — increases ability to tension steering bearings and retain torque\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eOEM Talaria Sting MX5 Compatibility\u003cbr\u003e\u003c\/span\u003eThe triple clamps and guards perfectly align with the Talaria MX5 fairing and cable routing. Additionally, the CMX F43 Fork upgrade is compatible with the Talaria MX5 stock display, fender, and brake as well.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eShock Suspension Pairing\u003cbr\u003e\u003c\/span\u003eFor optimal bike performance, we recommend using an \u003ca href=\"\/products\/ext-arma-e-mx-rear-shock-damper-sur-ron-segway-talaria\/\"\u003eEXT Arma Shock,\u003c\/a\u003e \u003ca href=\"\/products\/ohlins-shock-absorber-ttx22m-ext-spring-450-500-550\/\"\u003eOhlins TTX22M with EXT Spring\u003c\/a\u003e, or equivalent.\u003c\/p\u003e\n\u003ch2\u003eF43 CMX Fork Specs\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eUpside down fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTravel\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree length\u003c\/td\u003e\n\u003ctd\u003e775mm (drop clamp option adds another 25mm of extended length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork Spacing\u003c\/td\u003e\n\u003ctd\u003e178mm - allows for unlimited tire choice (dirt or street)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork weight\u003c\/td\u003e\n\u003ctd\u003e4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanchions\u003c\/td\u003e\n\u003ctd\u003e43mm - high tensile steel with hard chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter tubes\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrop outs\u003c\/td\u003e\n\u003ctd\u003e6061 aluminum, type 2 anodized coating Replaceable caliper mount brackets allow for caliper and wheel upgrades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eUltra-high tensile hard chromed axle increases steering precision and confidence\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriple clamps\u003c\/td\u003e\n\u003ctd\u003eBillet 6061 aluminum, type 2 anodized coating, 2 color options (blue, black) Optional drop clamp allows for 21” front wheel conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteer tube\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping\u003c\/td\u003e\n\u003ctd\u003eSymmetrical, adjustable closed cartridge with spring backed modified IFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper bodies\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound\u003c\/td\u003e\n\u003ctd\u003eDual side high tensile steel spring, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjusters\u003c\/td\u003e\n\u003ctd\u003eExternal tool-free compression, rebound adjustment (rebound adjusted using tool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeals\u003c\/td\u003e\n\u003ctd\u003eNOK MX seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBushings\u003c\/td\u003e\n\u003ctd\u003eDaido MX bushings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuards\u003c\/td\u003e\n\u003ctd\u003eHigh impact PP, 210° wraparound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCMX Tuning Details \u0026amp; Rider Weight Ranges\u003c\/h2\u003e\n\u003cp\u003eSirris offers 2 weight ranges to choose from when selecting your CMX Tune F43 Fork for Talaria MX5. Listed weight ranges are body weight with 15 lbs of riding gear. Weights of upgrades (e.g. battery, controller, motor) need to be added to rider weight.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 274.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 19.6px;\"\u003eF43 CMX MX5 FORK Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e3.6\/3.6\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e4.0\/3.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e22\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e18\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e110cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eHeadset Spacer \u003cspan style=\"font-size: .8em;\"\u003e1mm thick washer beneath seal, PN 430-38-017\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-38-017 x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eSteerer Spacer 5\u003cspan style=\"font-size: .8em;\"\u003emm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-38-018 x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eCaliper Bracket\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-22-035, 95.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-22-036-267-02 x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 274.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 19.6px;\"\u003eSHOCK (Stock) Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e17\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e7\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e96, 550\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e105, 600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eSETTINGS: \u003c\/strong\u003eSettings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCMX Tune Starting Point:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAssuming neutral riding position, and 15 lbs gear\u003c\/li\u003e\n\u003cli\u003eWeights of upgrades (battery, controller, etc) to be added to rider weight\u003c\/li\u003e\n\u003cli\u003eRiders close to a weight cut off need to adjust preload to compensate\u003c\/li\u003e\n\u003cli\u003eVery aggressive\/pro riders to consider +1 weight class and drop preload to get sag. Especially if in the upper range.\u003c\/li\u003e\n\u003cli\u003eRider preference and riding conditions may require a different setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eExample:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e160 lb rider without riding gear, 20 additional lbs with upgraded controller\/battery\u003c\/li\u003e\n\u003cli\u003eWeight calculation 160+20=180\u003c\/li\u003e\n\u003cli\u003eAggressive rider = Heavy tune with low preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider = Medium tune with high preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSirris F43 Fork Installation\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Direct Mount Setup \u003c\/strong\u003eUpgrade your stock Talaria MX5 easily with the direct mount front suspension system. No additional modifications or parts are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation \u003c\/strong\u003eThe Sirris F43 Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-R38-owners-guide-090226.pdf?v=1789079403\" rel=\"noopener\" target=\"_blank\"\u003eSirris F43 \u0026amp; R38 CMX Owner’s Guide (PDF) ›\u003c\/a\u003e\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Black","offer_id":50807782342952,"sku":"SIR-F43-MX5-M-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Blue","offer_id":50807782375720,"sku":"SIR-F43-MX5-M-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Black","offer_id":50807782408488,"sku":"SIR-F43-MX5-M-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Black","offer_id":50807782474024,"sku":"SIR-F43-MX5-H-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Blue","offer_id":50807782506792,"sku":"SIR-F43-MX5-H-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Black","offer_id":50807782539560,"sku":"SIR-F43-MX5-H-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-220-CMX-Fork_0010_black-front.jpg?v=1755508900"},{"product_id":"sirris-f43-fork-cmx-tune-ventus-one","title":"Sirris F43 Fork CMX Tune: Ventus One+","description":"\u003cp\u003eTake your Ventus One+ to the next level with the Sirris F43 CMX Fork. This 220mm travel fork is engineered without compromise specifically for the Ventus One+ for high-performance, aggressive riding. The CMX Tune (Compact Motocross) paired with the race-proven F43 platform brings elite-level suspension tech to the electric dirt bike world.\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e140 lbs - 180 lbs  (Medium = 3.6\/3.6 springs)\u003cbr\u003e180 lbs - 220 lbs  (Heavy = 4.0\/3.6 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left\/right side.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cem\u003eSee Stock Shock Tuning Chart below\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSirris F43 CMX Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e220mm Travel — (17mm more than stock) adds cushioning for aggressive riding\u003c\/li\u003e\n\u003cli\u003eTool-Free Compression Adjusters — for quicker changes during mid ride without any tools needed\u003c\/li\u003e\n\u003cli\u003e178mm Fork Spacing — allows unlimited tire selection from aggressive knobby to supermoto treads\u003c\/li\u003e\n\u003cli\u003eDrop Clamp Option for 21\" Wheels — allows for fitment of 21” wheel by raising the front end an additional 25mm while retaining 220mm travel \u003cem\u003e(raising the front end maintains balance of the bike if paired with a longer shock that raises the rear)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eScalloped Clamps — for aggressive, trick styling\u003c\/li\u003e\n\u003cli\u003eDirect Mount Stem (DM Ready) — lightweight billet clamps with DM stem designed for hassle-free setup (no extra parts needed)\u003c\/li\u003e\n\u003cli\u003eAxle \u0026amp; Brake Mounts — ultra-stiff and configurable\n\u003cul\u003e\n\u003cli\u003eAxle and drop out assembly promotes front-end feel and steering precision\u003c\/li\u003e\n\u003cli\u003eUniversal lugs, custom axle spacers and new brake mounts allow for easier stocking, and allows rider greater wheel and brake options\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow for caliper upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSymmetrical Closed Cartridge Dampers — specifically tuned for each model, and fully tunable for spring rate and damping for balanced performance\u003c\/li\u003e\n\u003cli\u003eMotorcycle-Style Top Cap — increases ability to tension steering bearings and retain torque\u003c\/li\u003e\n\u003cli\u003eAvailable in MEDIUM and HEAVY tune\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eOEM Ventus One Compatibility\u003cbr\u003e\u003c\/span\u003eThe triple clamps and guards perfectly align with the Ventus One+ fairing and cable routing. Additionally, the CMX F43 Fork upgrade is compatible with the Ventus One+ stock display, fender, and brake as well.\u003c\/p\u003e\n\u003ch2\u003eF43 CMX Fork Specs\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eUpside down fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTravel\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree length\u003c\/td\u003e\n\u003ctd\u003e775mm (drop clamp option adds another 25mm of extended length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork Spacing\u003c\/td\u003e\n\u003ctd\u003e178mm - allows for unlimited tire choice (dirt or street)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork weight\u003c\/td\u003e\n\u003ctd\u003e4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanchions\u003c\/td\u003e\n\u003ctd\u003e43mm - high tensile steel with hard chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter tubes\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrop outs\u003c\/td\u003e\n\u003ctd\u003e6061 aluminum, type 2 anodized coating Replaceable caliper mount brackets allow for caliper and wheel upgrades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eUltra-high tensile hard chromed axle increases steering precision and confidence\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriple clamps\u003c\/td\u003e\n\u003ctd\u003eBillet 6061 aluminum, type 2 anodized coating, 2 color options (blue, black) Optional drop clamp allows for 21” front wheel conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteer tube\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping\u003c\/td\u003e\n\u003ctd\u003eSymmetrical, adjustable closed cartridge with spring backed modified IFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper bodies\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound\u003c\/td\u003e\n\u003ctd\u003eDual side high tensile steel spring, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjusters\u003c\/td\u003e\n\u003ctd\u003eExternal tool-free compression, rebound adjustment (rebound adjusted using tool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeals\u003c\/td\u003e\n\u003ctd\u003eNOK MX seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBushings\u003c\/td\u003e\n\u003ctd\u003eDaido MX bushings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuards\u003c\/td\u003e\n\u003ctd\u003eHigh impact PP, 210° wraparound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCMX Tuning Details \u0026amp; Rider Weight Ranges\u003c\/h2\u003e\n\u003cp\u003eSirris offers 2 weight ranges to choose from when selecting your CMX Tune F43 Fork for Ventus One+. Listed weight ranges are body weight with 15 lbs of riding gear. Weights of upgrades (e.g. battery, controller, motor) need to be added to rider weight.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 274.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 19.6px;\"\u003eFORK Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e3.6\/3.6\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e4.0\/3.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e8\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e18\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e18\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e110cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eHeadset Spacer \u003cspan style=\"font-size: .8em;\"\u003e1mm thick washer beneath seal, PN 430-38-017\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-38-017 x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eSteerer Spacer \u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-38-018 x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eCaliper Bracket\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-22-032, 74mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eBrake Line Shim \u003cspan style=\"font-size: .8em;\"\u003efor 5mm thick line\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-52-001-XXX-XX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 71.7047%;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\" colspan=\"2\"\u003e430-22-036-360 x2\u003cbr\u003e430-22-036-267 x2\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 274.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 19.6px;\"\u003eSHOCK (Stock) Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e6\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e10\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e88, 500\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e96, 550\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e3.5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e3.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eSETTINGS: \u003c\/strong\u003eSettings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCMX Tune Starting Point:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAssuming neutral riding position, and 15 lbs gear\u003c\/li\u003e\n\u003cli\u003eWeights of upgrades (battery, controller, etc) to be added to rider weight\u003c\/li\u003e\n\u003cli\u003eRiders close to a weight cut off need to adjust preload to compensate\u003c\/li\u003e\n\u003cli\u003eVery aggressive\/pro riders to consider +1 weight class and drop preload to get sag. Especially if in the upper range.\u003c\/li\u003e\n\u003cli\u003eRider preference and riding conditions may require a different setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eExample:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e160 lb rider without riding gear, 20 additional lbs with upgraded controller\/battery\u003c\/li\u003e\n\u003cli\u003eWeight calculation 160+20=180\u003c\/li\u003e\n\u003cli\u003eAggressive rider = Heavy tune with low preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider = Medium tune with high preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSirris F43 Fork Installation\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Direct Mount Setup \u003c\/strong\u003eUpgrade your stock Ventus One+ easily with the direct mount front suspension system. No additional modifications or parts are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation \u003c\/strong\u003eThe Sirris F43 Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-R38-owners-guide-090226.pdf?v=1789079403\" rel=\"noopener\" target=\"_blank\"\u003eSirris F43 \u0026amp; R38 CMX Owner’s Guide (PDF) ›\u003c\/a\u003e\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Black","offer_id":50828208210216,"sku":"SIR-F43-V1+M-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Blue","offer_id":50828208242984,"sku":"SIR-F43-V1+M-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Black","offer_id":50828208275752,"sku":"SIR-F43-V1+M-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Black","offer_id":50828208308520,"sku":"SIR-F43-V1+H-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Blue","offer_id":50828208341288,"sku":"SIR-F43-V1+H-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Black","offer_id":50828208374056,"sku":"SIR-F43-V1+H-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-220-CMX-Fork_0010_black-front.jpg?v=1755508900"},{"product_id":"sirris-f43-fork-cmx-tune-zero-xb","title":"Sirris F43 Fork CMX Tune: Zero XB","description":"\u003cp\u003eTake your Zero XB to the next level with the Sirris F43 CMX Fork. This 220mm travel fork is engineered without compromise specifically for the Zero XB for high-performance, aggressive riding. The CMX Tune (Compact Motocross) paired with the race-proven F43 platform brings elite-level suspension tech to the electric dirt bike world.\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e140 lbs - 180 lbs  (Medium = 3.6\/3.2 springs)\u003cbr\u003e180 lbs - 220 lbs  (Heavy = 3.6\/3.6 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left\/right side.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eSee Fork \u0026amp; Shock Tuning Recommendations Chart below.\u003c\/p\u003e\n\u003ch2\u003eSirris F43 CMX Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e220mm Travel — (17mm more than stock) adds cushioning for aggressive riding\u003c\/li\u003e\n\u003cli\u003eTool-Free Compression Adjusters — for quicker changes during mid ride without any tools needed\u003c\/li\u003e\n\u003cli\u003e178mm Fork Spacing — allows unlimited tire selection from aggressive knobby to supermoto treads\u003c\/li\u003e\n\u003cli\u003eDrop Clamp Option for 21\" Wheels — allows for fitment of 21” wheel by raising the front end an additional 25mm while retaining 220mm travel \u003cem\u003e(raising the front end maintains balance of the bike if paired with a longer shock that raises the rear)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eScalloped Clamps — for aggressive, trick styling\u003c\/li\u003e\n\u003cli\u003eDirect Mount Stem (DM Ready) — lightweight billet clamps with DM stem designed for hassle-free setup (no extra parts needed)\u003c\/li\u003e\n\u003cli\u003eAxle \u0026amp; Brake Mounts — ultra-stiff and configurable\n\u003cul\u003e\n\u003cli\u003eAxle and drop out assembly promotes front-end feel and steering precision\u003c\/li\u003e\n\u003cli\u003eUniversal lugs, custom axle spacers and new brake mounts allow for easier stocking, and allows rider greater wheel and brake options\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow for caliper upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSymmetrical Closed Cartridge Dampers — specifically tuned for each model, and fully tunable for spring rate and damping for balanced performance\u003c\/li\u003e\n\u003cli\u003eMotorcycle-Style Top Cap — increases ability to tension steering bearings and retain torque\u003c\/li\u003e\n\u003cli\u003eAvailable in MEDIUM and HEAVY tune\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eOEM Zero XB Compatibility\u003cbr\u003e\u003c\/span\u003eThe triple clamps and guards perfectly align with the Zero XB fairing and cable routing. Additionally, the CMX F43 Fork upgrade is compatible with the Zero XB stock display, fender, and brake as well.\u003c\/p\u003e\n\u003ch2\u003eF43 CMX Fork Specs\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eUpside down fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTravel\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree length\u003c\/td\u003e\n\u003ctd\u003e775mm (drop clamp option adds another 25mm of extended length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork Spacing\u003c\/td\u003e\n\u003ctd\u003e178mm - allows for unlimited tire choice (dirt or street)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork weight\u003c\/td\u003e\n\u003ctd\u003e4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanchions\u003c\/td\u003e\n\u003ctd\u003e43mm - high tensile steel with hard chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter tubes\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrop outs\u003c\/td\u003e\n\u003ctd\u003e6061 aluminum, type 2 anodized coating Replaceable caliper mount brackets allow for caliper and wheel upgrades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eUltra-high tensile hard chromed axle increases steering precision and confidence\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriple clamps\u003c\/td\u003e\n\u003ctd\u003eBillet 6061 aluminum, type 2 anodized coating, 2 color options (blue, black) Optional drop clamp allows for 21” front wheel conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteer tube\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping\u003c\/td\u003e\n\u003ctd\u003eSymmetrical, adjustable closed cartridge with spring backed modified IFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper bodies\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound\u003c\/td\u003e\n\u003ctd\u003eDual side high tensile steel spring, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjusters\u003c\/td\u003e\n\u003ctd\u003eExternal tool-free compression, rebound adjustment (rebound adjusted using tool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeals\u003c\/td\u003e\n\u003ctd\u003eNOK MX seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBushings\u003c\/td\u003e\n\u003ctd\u003eDaido MX bushings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuards\u003c\/td\u003e\n\u003ctd\u003eHigh impact PP, 210° wraparound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCMX Tuning Details \u0026amp; Rider Weight Ranges\u003c\/h2\u003e\n\u003cp\u003eSirris offers 2 weight ranges to choose from when selecting your CMX Tune F43 Fork for Zero XB. Listed weight ranges are body weight with 15 lbs of riding gear. Weights of upgrades (e.g. battery, controller, motor) need to be added to rider weight.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 294px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 19.6px;\"\u003eFORK Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e3.6\/3.2\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e3.6\/3.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e19\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e17\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e110cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eHeadset Spacer \u003cspan style=\"font-size: .8em;\"\u003e1mm thick washer beneath seal, PN 430-38-017\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-38-017 x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eSteerer Spacer \u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-38-018 x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eCaliper Bracket\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003e430-22-032, 74mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eBrake Line Shim \u003cspan style=\"font-size: .8em;\"\u003efor 5mm thick line\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; width: 27.5923%; height: 19.6px;\" colspan=\"2\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 71.7047%;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\" colspan=\"2\"\u003e430-22-036-360 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 274.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 19.6px;\"\u003eSHOCK (Stock) Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e61, 350\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e70, 400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 19.6px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 19.6px;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 19.6px;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eSETTINGS: \u003c\/strong\u003eSettings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCMX Tune Starting Point:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAssuming neutral riding position, and 15 lbs gear\u003c\/li\u003e\n\u003cli\u003eWeights of upgrades (battery, controller, etc) to be added to rider weight\u003c\/li\u003e\n\u003cli\u003eRiders close to a weight cut off need to adjust preload to compensate\u003c\/li\u003e\n\u003cli\u003eVery aggressive\/pro riders to consider +1 weight class and drop preload to get sag. Especially if in the upper range.\u003c\/li\u003e\n\u003cli\u003eRider preference and riding conditions may require a different setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eExample:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e160 lb rider without riding gear, 20 additional lbs with upgraded controller\/battery\u003c\/li\u003e\n\u003cli\u003eWeight calculation 160+20=180\u003c\/li\u003e\n\u003cli\u003eAggressive rider = Heavy tune with low preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider = Medium tune with high preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSirris F43 Fork Installation\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Direct Mount Setup \u003c\/strong\u003eUpgrade your stock Zero XB easily with the direct mount front suspension system. No additional modifications or parts are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation \u003c\/strong\u003eThe Sirris F43 Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-R38-owners-guide-090226.pdf?v=1789079403\" rel=\"noopener\" target=\"_blank\"\u003eSirris F43 \u0026amp; R38 CMX Owner’s Guide (PDF) ›\u003c\/a\u003e\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Black","offer_id":50828242682152,"sku":"SIR-F43-ZXB-M-BLK","price":2250.0,"currency_code":"USD","in_stock":false},{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Blue","offer_id":50828242714920,"sku":"SIR-F43-ZXB-M-BLU","price":2250.0,"currency_code":"USD","in_stock":false},{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Black","offer_id":50828242747688,"sku":"SIR-F43-ZXB-M-BLK-D","price":2350.0,"currency_code":"USD","in_stock":false},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Black","offer_id":50828242780456,"sku":"SIR-F43-ZXB-H-BLK","price":2250.0,"currency_code":"USD","in_stock":false},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Blue","offer_id":50828242813224,"sku":"SIR-F43-ZXB-H-BLU","price":2250.0,"currency_code":"USD","in_stock":false},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Black","offer_id":50828242845992,"sku":"SIR-F43-ZXB-H-BLK-D","price":2350.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-220-CMX-Fork_0010_black-front.jpg?v=1755508900"},{"product_id":"sirris-f43-fork-cmx-tune-e-ride-pro-ss-3-0","title":"Sirris F43 Fork CMX Tune: E Ride Pro SS 3.0","description":"\u003cp\u003eTake your E Ride Pro SS 3.0 to the next level with the Sirris F43 CMX Fork. This 220mm travel fork is engineered without compromise specifically for the E Ride Pro SS 3.0 for high-performance, aggressive riding. The CMX Tune (Compact Motocross) paired with the race-proven F43 platform brings elite-level suspension tech to the electric dirt bike world.\u003c\/p\u003e\n\u003cp\u003e140 lbs - 180 lbs  (Medium = 3.6\/3.6 springs)\u003cbr\u003e180 lbs - 220 lbs  (Heavy = 4.0\/3.6 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left side\/right side\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eSee Fork \u0026amp; Shock Tuning Recommendations Chart below.\u003c\/p\u003e\n\u003ch2\u003eSirris F43 CMX Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e220mm Travel — (17mm more than stock) adds cushioning for aggressive riding\u003c\/li\u003e\n\u003cli\u003eTool-Free Compression Adjusters — for quicker changes during mid ride without any tools needed\u003c\/li\u003e\n\u003cli\u003e178mm Fork Spacing — allows unlimited tire selection from aggressive knobby to supermoto treads\u003c\/li\u003e\n\u003cli\u003eDrop Clamp Option for 21\" Wheels — allows for fitment of 21” wheel by raising the front end an additional 25mm while retaining 220mm travel \u003cem\u003e(raising the front end maintains balance of the bike if paired with a longer shock that raises the rear)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eScalloped Clamps — for aggressive, trick styling\u003c\/li\u003e\n\u003cli\u003eDirect Mount Stem (DM Ready) — lightweight billet clamps with DM stem designed for hassle-free setup (no extra parts needed)\u003c\/li\u003e\n\u003cli\u003eAxle \u0026amp; Brake Mounts — ultra-stiff and configurable\n\u003cul\u003e\n\u003cli\u003eAxle and drop out assembly promotes front-end feel and steering precision\u003c\/li\u003e\n\u003cli\u003eUniversal lugs, custom axle spacers and new brake mounts allow for easier stocking, and allows rider greater wheel and brake options\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow for caliper upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSymmetrical Closed Cartridge Dampers — specifically tuned for each model, and fully tunable for spring rate and damping for balanced performance\u003c\/li\u003e\n\u003cli\u003eMotorcycle-Style Top Cap — increases ability to tension steering bearings and retain torque\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eOEM E Ride Pro SS 3.0 Compatibility\u003cbr\u003e\u003c\/span\u003eThe triple clamps and guards perfectly align with the E Ride Pro SS 3.0 fairing and cable routing. Additionally, the CMX F43 Fork upgrade is compatible with the E Ride Pro SS 3.0 stock display, fender, and brake as well.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eShock Suspension Pairing\u003cbr\u003e\u003c\/span\u003eFor optimal bike performance, we recommend using an \u003ca href=\"\/products\/ext-arma-e-mx-rear-shock-damper-sur-ron-segway-talaria\/\"\u003eEXT Arma Shock,\u003c\/a\u003e \u003ca href=\"\/products\/ohlins-shock-absorber-ttx22m-ext-spring-450-500-550\/\"\u003eOhlins TTX22M with EXT Spring\u003c\/a\u003e, or equivalent. Spring Weights: Medium Tune (450 lbs) \/ Heavy Tune (500 lbs) - \u003cem\u003esee tuning recommendations below\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eF43 CMX Fork Specs\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eUpside down fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTravel\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree length\u003c\/td\u003e\n\u003ctd\u003e775mm (drop clamp option adds another 25mm of extended length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork Spacing\u003c\/td\u003e\n\u003ctd\u003e178mm - allows for unlimited tire choice (dirt or street)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork weight\u003c\/td\u003e\n\u003ctd\u003e4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanchions\u003c\/td\u003e\n\u003ctd\u003e43mm - high tensile steel with hard chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter tubes\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrop outs\u003c\/td\u003e\n\u003ctd\u003e6061 aluminum, type 2 anodized coating Replaceable caliper mount brackets allow for caliper and wheel upgrades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eUltra-high tensile hard chromed axle increases steering precision and confidence\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriple clamps\u003c\/td\u003e\n\u003ctd\u003eBillet 6061 aluminum, type 2 anodized coating, 2 color options (blue, black) Optional drop clamp allows for 21” front wheel conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteer tube\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping\u003c\/td\u003e\n\u003ctd\u003eSymmetrical, adjustable closed cartridge with spring backed modified IFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper bodies\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound\u003c\/td\u003e\n\u003ctd\u003eDual side high tensile steel spring, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjusters\u003c\/td\u003e\n\u003ctd\u003eExternal tool-free compression, rebound adjustment (rebound adjusted using tool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeals\u003c\/td\u003e\n\u003ctd\u003eNOK MX seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBushings\u003c\/td\u003e\n\u003ctd\u003eDaido MX bushings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuards\u003c\/td\u003e\n\u003ctd\u003eHigh impact PP, 210° wraparound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eCMX Tuning Details \u0026amp; Rider Weight Ranges\u003c\/h4\u003e\n\u003cp\u003eSirris offers 2 weight ranges to choose from when selecting your CMX Tune F43 Fork. Listed weight ranges are body weight with 15 lbs of riding gear. Weights of upgrades (e.g. battery, controller, motor) need to be added to rider weight.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 254.8px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"height: 19.6px;\"\u003eFORK Recommendations\u003c\/th\u003e\n\u003cth style=\"height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e3.6\/3.6\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4.0\/3.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e18\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e18\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e5\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e120cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eHeadset Spacer \u003cspan style=\"font-size: .8em;\"\u003e1mm thick washer beneath seal, PN 430-38-017\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eSteerer Spacer \u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-38-018 x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eCaliper Bracket\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-22-034, 99.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-22-016 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 240.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 48.0833px;\"\u003eSHOCK (EXT Arma) Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 48.0833px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 48.0833px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003eLSC11\/HSC9\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003eLSC9\/HSC7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e7\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e79, 450\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e88, 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0667px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0667px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0667px;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0667px;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eSETTINGS: \u003c\/strong\u003eSettings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCMX Tune Starting Point:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAssuming neutral riding position, and 15 lbs gear\u003c\/li\u003e\n\u003cli\u003eWeights of upgrades (battery, controller, etc) to be added to rider weight\u003c\/li\u003e\n\u003cli\u003eRiders close to a weight cut off need to adjust preload to compensate\u003c\/li\u003e\n\u003cli\u003eVery aggressive\/pro riders to consider +1 weight class and drop preload to get sag. Especially if in the upper range.\u003c\/li\u003e\n\u003cli\u003eRider preference and riding conditions may require a different setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eExample:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e160 lb rider without riding gear, 20 additional lbs with upgraded controller\/battery\u003c\/li\u003e\n\u003cli\u003eWeight calculation 160+20=180\u003c\/li\u003e\n\u003cli\u003eAggressive rider = Heavy tune with low preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider = Medium tune with high preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSirris F43 Fork Installation\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Direct Mount Setup \u003c\/strong\u003eUpgrade your stock E Ride Pro SS 3.0 easily with the direct mount front suspension system. No additional modifications or parts are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation \u003c\/strong\u003eThe Sirris F43 Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-R38-owners-guide-090226.pdf?v=1789079403\" rel=\"noopener\" target=\"_blank\"\u003eSirris F43 \u0026amp; R38 CMX Owner’s Guide (PDF) ›\u003c\/a\u003e\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Black","offer_id":50828467372328,"sku":"SIR-F43-ER3-M-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Blue","offer_id":50828467405096,"sku":"SIR-F43-ER3-M-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Black","offer_id":50828467437864,"sku":"SIR-F43-ER3-M-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Black","offer_id":50828467470632,"sku":"SIR-F43-ER3-H-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Blue","offer_id":50828467503400,"sku":"SIR-F43-ER3-H-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Black","offer_id":50828467536168,"sku":"SIR-F43-ER3-H-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-220-CMX-Fork_0010_black-front.jpg?v=1755508900"},{"product_id":"sirris-f43-fork-cmx-tune-e-ride-pro-ss-2-0","title":"Sirris F43 Fork CMX Tune: E Ride Pro SS 2.0","description":"\u003cp\u003eTake your E Ride Pro SS 2.0 to the next level with the Sirris F43 CMX Fork. This 220mm travel fork is engineered without compromise specifically for the E Ride Pro SS 2.0 for high-performance, aggressive riding. The CMX Tune (Compact Motocross) paired with the race-proven F43 platform brings elite-level suspension tech to the electric dirt bike world.\u003c\/p\u003e\n\u003cp\u003e140 lbs - 180 lbs  (Medium = 3.6\/3.2 springs)\u003cbr\u003e180 lbs - 220 lbs  (Heavy = 3.6\/3.6 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left side\/right side\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eSee Fork \u0026amp; Shock Tuning Recommendations Chart below.\u003c\/p\u003e\n\u003ch2\u003eSirris F43 CMX Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e220mm Travel — (17mm more than stock) adds cushioning for aggressive riding\u003c\/li\u003e\n\u003cli\u003eTool-Free Compression Adjusters — for quicker changes during mid ride without any tools needed\u003c\/li\u003e\n\u003cli\u003e178mm Fork Spacing — allows unlimited tire selection from aggressive knobby to supermoto treads\u003c\/li\u003e\n\u003cli\u003eDrop Clamp Option for 21\" Wheels — allows for fitment of 21” wheel by raising the front end an additional 25mm while retaining 220mm travel \u003cem\u003e(raising the front end maintains balance of the bike if paired with a longer shock that raises the rear)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eScalloped Clamps — for aggressive, trick styling\u003c\/li\u003e\n\u003cli\u003eDirect Mount Stem (DM Ready) — lightweight billet clamps with DM stem designed for hassle-free setup (no extra parts needed)\u003c\/li\u003e\n\u003cli\u003eAxle \u0026amp; Brake Mounts — ultra-stiff and configurable\n\u003cul\u003e\n\u003cli\u003eAxle and drop out assembly promotes front-end feel and steering precision\u003c\/li\u003e\n\u003cli\u003eUniversal lugs, custom axle spacers and new brake mounts allow for easier stocking, and allows rider greater wheel and brake options\u003c\/li\u003e\n\u003cli\u003eReplaceable caliper mount brackets allow for caliper upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSymmetrical Closed Cartridge Dampers — specifically tuned for each model, and fully tunable for spring rate and damping for balanced performance\u003c\/li\u003e\n\u003cli\u003eMotorcycle-Style Top Cap — increases ability to tension steering bearings and retain torque\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eOEM E Ride Pro SS 2.0 Compatibility\u003cbr\u003e\u003c\/span\u003eThe triple clamps and guards perfectly align with the E Ride Pro SS 2.0 fairing and cable routing. Additionally, the CMX F43 Fork upgrade is compatible with the E Ride Pro SS 2.0 stock display, fender, and brake as well.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1.1em;\"\u003eShock Suspension Pairing\u003cbr\u003e\u003c\/span\u003eFor optimal bike performance, we recommend using an \u003ca href=\"\/products\/ext-arma-e-mx-rear-shock-damper-sur-ron-segway-talaria\/\"\u003eEXT Arma Shock,\u003c\/a\u003e \u003ca href=\"\/products\/ohlins-shock-absorber-ttx22m-ext-spring-450-500-550\/\"\u003eOhlins TTX22M with EXT Spring\u003c\/a\u003e, or equivalent. Spring Weights: Medium Tune (450 lbs) \/ Heavy Tune (500 lbs) - \u003cem\u003esee tuning recommendations below\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eF43 CMX Fork Specs\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eArchitecture\u003c\/td\u003e\n\u003ctd\u003eUpside down fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTravel\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree length\u003c\/td\u003e\n\u003ctd\u003e775mm (drop clamp option adds another 25mm of extended length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork Spacing\u003c\/td\u003e\n\u003ctd\u003e178mm - allows for unlimited tire choice (dirt or street)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFork weight\u003c\/td\u003e\n\u003ctd\u003e4 kg per leg (driven by sturdy construction required for the forces and speeds encountered when pushing these bikes to their limits without compromising performance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanchions\u003c\/td\u003e\n\u003ctd\u003e43mm - high tensile steel with hard chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter tubes\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrop outs\u003c\/td\u003e\n\u003ctd\u003e6061 aluminum, type 2 anodized coating Replaceable caliper mount brackets allow for caliper and wheel upgrades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle\u003c\/td\u003e\n\u003ctd\u003eUltra-high tensile hard chromed axle increases steering precision and confidence\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriple clamps\u003c\/td\u003e\n\u003ctd\u003eBillet 6061 aluminum, type 2 anodized coating, 2 color options (blue, black) Optional drop clamp allows for 21” front wheel conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSteer tube\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 2 anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping\u003c\/td\u003e\n\u003ctd\u003eSymmetrical, adjustable closed cartridge with spring backed modified IFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamper bodies\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, type 3 hard anodized coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound\u003c\/td\u003e\n\u003ctd\u003eDual side high tensile steel spring, adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjusters\u003c\/td\u003e\n\u003ctd\u003eExternal tool-free compression, rebound adjustment (rebound adjusted using tool)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeals\u003c\/td\u003e\n\u003ctd\u003eNOK MX seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBushings\u003c\/td\u003e\n\u003ctd\u003eDaido MX bushings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuards\u003c\/td\u003e\n\u003ctd\u003eHigh impact PP, 210° wraparound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eCMX Tuning Details \u0026amp; Rider Weight Ranges\u003c\/h4\u003e\n\u003cp\u003eSirris offers 2 weight ranges to choose from when selecting your CMX Tune F43 Fork. Listed weight ranges are body weight with 15 lbs of riding gear. Weights of upgrades (e.g. battery, controller, motor) need to be added to rider weight.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 254.8px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"height: 19.6px; width: 71.7047%;\"\u003eFORK Recommendations\u003c\/th\u003e\n\u003cth style=\"height: 19.6px; width: 14.2355%;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"height: 19.6px; width: 13.3568%;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 14.2355%;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 13.3568%;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 14.2355%;\"\u003e3.6\/3.2\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 13.3568%;\"\u003e3.6\/3.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 14.2355%;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 13.3568%;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 14.2355%;\"\u003e22\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 13.3568%;\"\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 14.2355%;\"\u003e20\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 13.3568%;\"\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 14.2355%;\"\u003e5\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 13.3568%;\"\u003e5\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 14.2355%;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 13.3568%;\"\u003e110cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 14.2355%;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 13.3568%;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eHeadset Spacer \u003cspan style=\"font-size: .8em;\"\u003e1mm thick washer beneath seal, PN 430-38-017\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"text-align: center; height: 19.6px; width: 27.5923%;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eSteerer Spacer \u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"text-align: center; height: 19.6px; width: 27.5923%;\"\u003e430-38-018 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eCaliper Bracket\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"text-align: center; height: 19.6px; width: 27.5923%;\"\u003e430-22-032, 74mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 71.7047%;\"\u003eBrake Line Shim \u003cspan style=\"font-size: .8em;\"\u003efor 5mm thick line\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"text-align: center;\"\u003e430-52-001-XXX-XX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 71.7047%;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"text-align: center; height: 19.6px; width: 27.5923%;\"\u003e430-22-016 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 240.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 48.0833px;\"\u003eSHOCK (EXT Arma) Recommendations\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 48.0833px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 48.0833px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003eLSC11\/HSC9\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003eLSC9\/HSC7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e9\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e79, 450\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e88, 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0667px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0667px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0667px;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0667px;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eSETTINGS: \u003c\/strong\u003eSettings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCMX Tune Starting Point:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAssuming neutral riding position, and 15 lbs gear\u003c\/li\u003e\n\u003cli\u003eWeights of upgrades (battery, controller, etc) to be added to rider weight\u003c\/li\u003e\n\u003cli\u003eRiders close to a weight cut off need to adjust preload to compensate\u003c\/li\u003e\n\u003cli\u003eVery aggressive\/pro riders to consider +1 weight class and drop preload to get sag. Especially if in the upper range.\u003c\/li\u003e\n\u003cli\u003eRider preference and riding conditions may require a different setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eExample:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e160 lb rider without riding gear, 20 additional lbs with upgraded controller\/battery\u003c\/li\u003e\n\u003cli\u003eWeight calculation 160+20=180\u003c\/li\u003e\n\u003cli\u003eAggressive rider = Heavy tune with low preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider = Medium tune with high preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSirris F43 Fork Installation\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Direct Mount Setup \u003c\/strong\u003eUpgrade your stock E Ride Pro SS 2.0 easily with the direct mount front suspension system. No additional modifications or parts are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation \u003c\/strong\u003eThe Sirris F43 Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-R38-owners-guide-090226.pdf?v=1789079403\" rel=\"noopener\" target=\"_blank\"\u003eSirris F43 \u0026amp; R38 CMX Owner’s Guide (PDF) ›\u003c\/a\u003e\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Black","offer_id":51350749544744,"sku":"SIR-F43-ER2-M-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Standard Clamp \/ Blue","offer_id":51350749577512,"sku":"SIR-F43-ER2-M-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Black","offer_id":51350749610280,"sku":"SIR-F43-ER2-M-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Black","offer_id":51350749643048,"sku":"SIR-F43-ER2-H-BLK","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Standard Clamp \/ Blue","offer_id":51350749675816,"sku":"SIR-F43-ER2-H-BLU","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Black","offer_id":51350749708584,"sku":"SIR-F43-ER2-H-BLK-D","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Blue","offer_id":51386659504424,"sku":"SIR-F43-ER2-M-BLU-D","price":2250.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Blue","offer_id":51386671759656,"sku":"SIR-F43-ER2-H-BLU-D","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-220-CMX-Fork_0010_black-front.jpg?v=1755508900"},{"product_id":"sirris-drop-clamp-cmx","title":"Sirris Drop Clamp For F43 CMX Forks","description":"\u003cp\u003eDrop clamp for Sirris F43 CMX forks allows for fitment of 21” wheel by raising the front end an additional 25mm while retaining 220mm travel. Raising the front end maintains balance of the bike if paired with a longer shock that raises the rear.\u003c\/p\u003e\n\u003ch2\u003eIncludes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e(1) upper drop clamp: 25 x 178, 49mm\u003c\/li\u003e\n\u003cli\u003e(5) screws: M6 x 1mm x 30mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sirris","offers":[{"title":"Black","offer_id":52183790944552,"sku":"SIR-DCLAMP-CMX","price":300.0,"currency_code":"USD","in_stock":true},{"title":"Blue","offer_id":52183790977320,"sku":"SIR-DCLAMP-CMX-BLU","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-Drop-Clamp-CMX.jpg?v=1768614811"},{"product_id":"sirris-r46-shock-springs","title":"Sirris R46 Shock Springs","description":"\u003cp\u003eShock springs for the Sirris R46 Shock for SurRon Ultra Bee. When upgrading your bike with a larger battery, we recommend going up one spring rate to accommodate the heavier bike weight. SurRon Ultra Bee shock springs require a spring compressor because of the short shock length.\u003c\/p\u003e\n\u003cp\u003eMax preload = 20mm\u003c\/p\u003e\n\u003ch2\u003eTuning Details \u0026amp; Rider Weight Range\u003c\/h2\u003e\n\u003ch3\u003eTrail Tune\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eLight\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eHeavy\u003c\/td\u003e\n\u003ctd\u003eX\u003c\/td\u003e\n\u003ctd\u003eXX\u003c\/td\u003e\n\u003ctd\u003eXXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd\u003e75\u003c\/td\u003e\n\u003ctd\u003e85\u003c\/td\u003e\n\u003ctd\u003e90\u003c\/td\u003e\n\u003ctd\u003e95\u003c\/td\u003e\n\u003ctd\u003e105\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Setting\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound Setting\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreload Setting (in mm)\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOil Weight*\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMX Tune\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eLight\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eHeavy\u003c\/td\u003e\n\u003ctd\u003eX\u003c\/td\u003e\n\u003ctd\u003eXX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd\u003e85\u003c\/td\u003e\n\u003ctd\u003e95\u003c\/td\u003e\n\u003ctd\u003e105\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Setting\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound Setting\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreload Setting (in mm)\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOil Weight*\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSX Tune\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eLight\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Setting\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound Setting\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreload Setting (in mm)\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOil Weight*\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEBMX Tune\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eLight\u003c\/td\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003eHeavy\u003c\/td\u003e\n\u003ctd\u003eX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd\u003e95\u003c\/td\u003e\n\u003ctd\u003e105\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Setting\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound Setting\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreload Setting (in mm)\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOil Weight*\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e*OIL NOTE: Sirris uses Shell Tellus S2 VX15 (5wt) in the fork cartridge and Shell Tellus S2 VX68 (20wt) as the bath oil. These are cross compatible with other high quality 5wt and 20wt suspension fluids. Sirris uses a semi-synthetic 2.5wt oil in the shock that is also compatible with other high quality 2.5wt aftermarket suspension fluids. You can use 5wt\/20wt oils of your preference, \u003ca href=\"https:\/\/lubefinder.com\"\u003eLubefinder.com\u003c\/a\u003e can be used to source the fork oils. KYB K2C can be used in the shock and has wide availability.\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"75","offer_id":51351956783400,"sku":"SIR-R46-SPRG-75","price":95.0,"currency_code":"USD","in_stock":true},{"title":"85","offer_id":51351956816168,"sku":"SIR-R46-SPRG-85","price":95.0,"currency_code":"USD","in_stock":true},{"title":"95","offer_id":51351956848936,"sku":"SIR-R46-SPRG-95","price":95.0,"currency_code":"USD","in_stock":true},{"title":"105","offer_id":51351956881704,"sku":"SIR-R46-SPRG-105","price":95.0,"currency_code":"USD","in_stock":true},{"title":"115","offer_id":51351956914472,"sku":"SIR-R46-SPRG-115","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-R46-Shock-Spring.jpg?v=1768706850"},{"product_id":"prickly-linkage-sirris-r38-shock-e-ride-pro-sr-3-0","title":"Prickly Linkage for Sirris R38 Shock: E Ride Pro SR \/ 3.0","description":"\u003cp\u003eThe Prickly Linkage is required for installing the Sirris R38 Rear Shock on the E Ride Pro SR and SS 3.0 electric dirt bikes. Designed specifically for the R38 shock, this custom linkage upgrade provides proper fitment while raising the rear of the bike by 25mm.\u003c\/p\u003e\n\u003cp\u003eThis direct bolt-on replacement requires no drilling, fabrication, or permanent modifications.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRequired for installation of the Sirris R38 Rear Shock\u003c\/li\u003e\n\u003cli\u003eFits E Ride Pro SR and SS 3.0 models\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation\u003c\/li\u003e\n\u003cli\u003eRaises rear ride height by 25mm when paired with the R38 shock\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machined from 6061-T6 billet aluminum\u003c\/li\u003e\n\u003cli\u003eHard anodized finish for increased durability\u003c\/li\u003e\n\u003cli\u003eOversized 18mm Schaeffler bearings\u003c\/li\u003e\n\u003cli\u003eBearings packed with Motorex waterproof synthetic grease\u003c\/li\u003e\n\u003cli\u003eAvailable in Black anodized finish or Silver (raw)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eE Ride Pro SR\u003c\/li\u003e\n\u003cli\u003eE Ride Pro SS 3.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The original factory E Ride Pro linkage is \u003cstrong\u003enot compatible\u003c\/strong\u003e with the Sirris R38 Shock.\u003c\/p\u003e\n\u003cp\u003eFor more balanced suspension geometry, the \u003ca href=\"https:\/\/darwinev.com\/products\/sirris-drop-clamp-cmx\"\u003e\u003cstrong\u003eSirris CMX Fork Drop Clamp\u003c\/strong\u003e\u003c\/a\u003e can be added to raise the front of the bike by a matching 25mm.\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Black","offer_id":52145466376488,"sku":"SIR-R38-LNKG-ERP-BLK","price":125.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":52145466409256,"sku":"SIR-R38-LNKG-ERP-SLV","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Prickly-Linkage-Sirris-R38-E-Ride-Pro.jpg?v=1784767953"},{"product_id":"sirris-r38-shock-e-ride-pro-ss-3-0","title":"Sirris R38 Shock: E Ride Pro SS 3.0 \/ 4.0","description":"\u003cp\u003eThe Sirris R38 Rear Shock upgrade brings true motocross-inspired suspension technology to the E Ride Pro SS 3.0 \/ 4.0. Based on the proven Sirris R46 platform, the R38 features oversized internal architecture, massive oil flow, and an advanced 2-Stage Compression (2SC) damping system for exceptional control, consistency, and durability on aggressive trails, jumps, and high-speed terrain.\u003c\/p\u003e\n\u003cp\u003eUnlike typical mountain bike-based e-moto shocks, the R38 Shock is engineered specifically for the demands of lightweight electric dirt bikes. Independent high-speed and low-speed compression adjustment, rebound adjustment, and spring preload allow riders to fine-tune suspension performance for any riding style or terrain.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the E Ride Pro SS 3.0 \/ 4.0\u003c\/li\u003e\n\u003cli\u003eMoto-inspired R46 internal architecture in a compact chassis\u003c\/li\u003e\n\u003cli\u003eIndependent high-speed and low-speed compression adjustment (2SC)\u003c\/li\u003e\n\u003cli\u003eTool-free rebound adjustment and spring preload adjustment\u003c\/li\u003e\n\u003cli\u003eHigh-flow 38mm piston for consistent damping and reduced fade\u003c\/li\u003e\n\u003cli\u003eLarge 16mm hollow hard-chromed shaft for maximum strength\u003c\/li\u003e\n\u003cli\u003eType III hard anodized aluminum body with ACME threads\u003c\/li\u003e\n\u003cli\u003eCMX (Compact Motocross Tune) optimized for aggressive off-road riding\u003c\/li\u003e\n\u003cli\u003ePairs perfectly with the \u003cstrong\u003e\u003ca href=\"https:\/\/darwinev.com\/products\/sirris-f43-fork-cmx-tune-e-ride-pro-ss-3-0\"\u003eSirris F43 CMX Fork: E Ride Pro SS 3.0 \/ 4.0\u003c\/a\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The original factory E Ride Pro SS 3.0 \/ 4.0 linkage is \u003cstrong\u003enot compatible\u003c\/strong\u003e with the Sirris R38 Shock. The R38 requires the \u003cstrong\u003e\u003ca href=\"\/products\/prickly-linkage-sirris-r38-shock-e-ride-pro-sr-3-0\"\u003ePrickly Sirris R38 Linkage Kit\u003c\/a\u003e\u003c\/strong\u003e. The Prickly Linkage raises the rear of the bike approximately 25mm to properly accommodate the larger R38 shock.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 289mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e 78mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Type:\u003c\/strong\u003e Piggyback, steel spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.3 lbs (1.5 kg) without spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Speed Compression:\u003c\/strong\u003e 18 clicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Compression:\u003c\/strong\u003e 24 clicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e 24 clicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Preload:\u003c\/strong\u003e Adjustable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpring Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMedium: 140 lbs - 180 lbs (80 N\/mm spring)\u003c\/li\u003e\n\u003cli\u003eHeavy: 180 lbs - 220 lbs (90 N\/mm spring)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eE Ride Pro SS 3.0 \/ 4.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eImportant Notes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequires the \u003cstrong\u003e\u003ca href=\"\/products\/prickly-linkage-sirris-r38-shock-e-ride-pro-sr-3-0\"\u003ePrickly Sirris R38 Linkage Kit\u003c\/a\u003e\u003c\/strong\u003e (sold separately).\u003c\/li\u003e\n\u003cli\u003eStock E Ride Pro SS 3.0 \/ 4.0 linkage is not compatible.\u003c\/li\u003e\n\u003cli\u003eOptional \u003ca href=\"https:\/\/darwinev.com\/products\/sirris-drop-clamp-cmx\"\u003e\u003cstrong\u003eCMX Dork Drop Clamp\u003c\/strong\u003e\u003c\/a\u003e is recommended to maintain balanced chassis geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSuspension Tuning Recommendations\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 240.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 48.0833px;\"\u003eR38 Shock\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 48.0833px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 48.0833px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003eLSC 16 \/ HSC 12\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003eLSC 14 \/ HSC 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e9\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e80\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0667px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0667px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0667px;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0667px;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 254.8px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"height: 19.6px;\"\u003eF43 CMX Fork\u003c\/th\u003e\n\u003cth style=\"height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e3.6\/3.6\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4.0\/3.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e6.5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e6.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e15\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e17\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4\/4\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e110cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eHeadset Spacer \u003cspan style=\"font-size: .8em;\"\u003e1mm thick washer beneath seal, PN 430-38-017\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eSteerer Spacer \u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-38-018 x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eCaliper Bracket\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-22-034, 99.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-22-016 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Sirris","offers":[{"title":"Medium (140 - 180 lbs)","offer_id":52145544659240,"sku":"SIR-R38-ER3-M","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180 - 220 lbs)","offer_id":52145544692008,"sku":"SIR-R38-ER3-H","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-R38-Shock-2.jpg?v=1784771369"},{"product_id":"sirris-r38-shock-e-ride-pro-sr","title":"Sirris R38 Shock: E Ride Pro SR","description":"\u003cp\u003eThe Sirris R38 Rear Shock upgrade brings true motocross-inspired suspension technology to the E Ride Pro SR. Based on the proven Sirris R46 platform, the R38 features oversized internal architecture, massive oil flow, and an advanced 2-Stage Compression (2SC) damping system for exceptional control, consistency, and durability on aggressive trails, jumps, and high-speed terrain.\u003c\/p\u003e\n\u003cp\u003eUnlike typical mountain bike-based e-moto shocks, the R38 Shock is engineered specifically for the demands of lightweight electric dirt bikes. Independent high-speed and low-speed compression adjustment, rebound adjustment, and spring preload allow riders to fine-tune suspension performance for any riding style or terrain.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the E Ride Pro SR\u003c\/li\u003e\n\u003cli\u003eMoto-inspired R46 internal architecture in a compact chassis\u003c\/li\u003e\n\u003cli\u003eIndependent high-speed and low-speed compression adjustment (2SC)\u003c\/li\u003e\n\u003cli\u003eTool-free rebound adjustment and spring preload adjustment\u003c\/li\u003e\n\u003cli\u003eHigh-flow 38mm piston for consistent damping and reduced fade\u003c\/li\u003e\n\u003cli\u003eLarge 16mm hollow hard-chromed shaft for maximum strength\u003c\/li\u003e\n\u003cli\u003eType III hard anodized aluminum body with ACME threads\u003c\/li\u003e\n\u003cli\u003eCMX (Compact Motocross Tune) optimized for aggressive off-road riding\u003c\/li\u003e\n\u003cli\u003ePairs perfectly with the \u003cstrong\u003e\u003ca href=\"https:\/\/darwinev.com\/products\/sirris-f43-fork-cmx-tune-e-ride-pro-sr?variant=50546970820904\"\u003eSirris F43 CMX Fork: E Ride Pro SR\u003c\/a\u003e\u003ca href=\"https:\/\/darwinev.com\/products\/sirris-f43-fork-cmx-tune-e-ride-pro-ss-3-0\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The original factory E Ride Pro SR linkage is \u003cstrong\u003enot compatible\u003c\/strong\u003e with the Sirris R38 Shock. The R38 requires the \u003cstrong\u003e\u003ca href=\"\/products\/prickly-linkage-sirris-r38-shock-e-ride-pro-sr-3-0\"\u003ePrickly Sirris R38 Linkage Kit\u003c\/a\u003e\u003c\/strong\u003e. The Prickly Linkage raises the rear of the bike approximately 25mm to properly accommodate the larger R38 shock.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 289mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e 78mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Type:\u003c\/strong\u003e Piggyback, steel spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.3 lbs (1.5 kg) without spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Speed Compression:\u003c\/strong\u003e 18 clicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Compression:\u003c\/strong\u003e 24 clicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e 24 clicks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Preload:\u003c\/strong\u003e Adjustable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpring Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMedium: 140 lbs - 180 lbs (90 N\/mm spring)\u003c\/li\u003e\n\u003cli\u003eHeavy: 180 lbs - 220 lbs (100 N\/mm spring)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eE Ride Pro SR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eImportant Notes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequires the \u003cstrong\u003e\u003ca href=\"\/products\/prickly-linkage-sirris-r38-shock-e-ride-pro-sr-3-0\"\u003ePrickly Sirris R38 Linkage Kit\u003c\/a\u003e\u003c\/strong\u003e (sold separately).\u003c\/li\u003e\n\u003cli\u003eStock E Ride Pro SR linkage is not compatible.\u003c\/li\u003e\n\u003cli\u003eOptional \u003ca href=\"https:\/\/darwinev.com\/products\/sirris-drop-clamp-cmx\"\u003e\u003cstrong\u003eCMX Dork Drop Clamp\u003c\/strong\u003e\u003c\/a\u003e is recommended to maintain balanced chassis geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSuspension Tuning Recommendations\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 240.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 48.0833px;\"\u003eR38 Shock\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 48.0833px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 48.0833px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003eLSC 12 \/ HSC 12\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003eLSC 10 \/ HSC 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e8\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e90\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0667px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0667px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0667px;\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0667px;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 254.8px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"height: 19.6px;\"\u003eF43 CMX Fork\u003c\/th\u003e\n\u003cth style=\"height: 19.6px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"height: 19.6px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4.0\/4.0\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4.4\/4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e6.5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e6.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e15\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e13\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4\/4\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e4\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e120cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eHeadset Spacer \u003cspan style=\"font-size: .8em;\"\u003e1mm thick washer beneath seal, PN 430-38-017\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eSteerer Spacer \u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-38-018 x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eCaliper Bracket\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-22-034, 99.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px;\" colspan=\"2\"\u003e430-22-016 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Sirris","offers":[{"title":"Medium (140 - 180 lbs)","offer_id":52151365009704,"sku":"SIR-R38-SR-M","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180 - 220 lbs)","offer_id":52151365042472,"sku":"SIR-R38-SR-H","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-R38-Shock-2.jpg?v=1784771369"},{"product_id":"sirris-r38-shock-arctic-leopard-xe-pro-s-enduro-r","title":"Sirris R38 Shock: Arctic Leopard XE Pro S \/ Enduro \/ R","description":"\u003cp\u003eThe Sirris R38 Rear Shock upgrade brings true motocross-inspired suspension technology to the Arctic Leopard XE Pro S, Enduro, and R electric dirt bikes. Based on the proven Sirris R46 platform, the R38 features oversized internal architecture, massive oil flow, and an advanced 2-Stage Compression (2SC) damping system for exceptional control, consistency, and durability on aggressive trails, jumps, and high-speed terrain.\u003c\/p\u003e\n\u003cp\u003eUnlike typical mountain bike-based e-moto shocks, the R38 Shock is engineered specifically for the demands of lightweight electric dirt bikes. Independent high-speed and low-speed compression adjustment, rebound adjustment, and spring preload allow riders to fine-tune suspension performance for riding style, terrain, and rider weight.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for the Arctic Leopard XE Pro S, Enduro, and R\u003c\/li\u003e\n\u003cli\u003eMoto-inspired R46 internal architecture in a compact chassis\u003c\/li\u003e\n\u003cli\u003eIndependent high-speed and low-speed compression adjustment (2SC)\u003c\/li\u003e\n\u003cli\u003eTool-free low-speed compression and rebound adjustment\u003c\/li\u003e\n\u003cli\u003eAdjustable spring preload\u003c\/li\u003e\n\u003cli\u003eHigh-flow 38mm piston for consistent damping and reduced fade\u003c\/li\u003e\n\u003cli\u003eLarge 16mm hollow hard-chromed shaft for maximum strength and oil flow\u003c\/li\u003e\n\u003cli\u003eType III hard anodized 6061 aluminum shock body with ACME threads\u003c\/li\u003e\n\u003cli\u003eCMX (Compact Motocross Tune) optimized for aggressive off-road riding\u003c\/li\u003e\n\u003cli\u003eDesigned to pair with the Sirris F43 CMX Fork for a balanced suspension setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The original factory Arctic Leopard lower linkage is \u003cstrong\u003enot compatible\u003c\/strong\u003e with the Sirris R38 Shock. Installation requires the \u003ca href=\"https:\/\/darwinev.com\/products\/tmb-linkage-sirris-r38-arctic-leopard-xe-pro-s-enduro-r\"\u003e\u003cstrong\u003eTMB Sirris R38 Linkage\u003c\/strong\u003e\u003c\/a\u003e, which was specifically developed to accommodate the larger R38 shock and is sold separately.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 269mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e 68mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Type:\u003c\/strong\u003e Piggyback, steel spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.3 lbs (1.5 kg) without spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Speed Compression:\u003c\/strong\u003e 18 clicks, tool-free\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Compression:\u003c\/strong\u003e 24 clicks, 20mm hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e 24 clicks, tool-free\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Preload:\u003c\/strong\u003e Adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Piston:\u003c\/strong\u003e 38mm high-flow CNC 6061 billet aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft:\u003c\/strong\u003e 16mm chrome-plated, induction-hardened hollow steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Body:\u003c\/strong\u003e Seamless 6061 aluminum, Type III hard anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom Out:\u003c\/strong\u003e MCU bumper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop Out:\u003c\/strong\u003e Rubber bumper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e HNBR\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpring Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMedium: 140 lbs - 180 lbs (110 N\/mm spring)\u003c\/li\u003e\n\u003cli\u003eHeavy: 180 lbs - 220 lbs (120 N\/mm spring)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eRider weight ranges are based on rider weight without riding gear. Sirris accounts for approximately 15 lbs of riding gear when determining the recommended spring range.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArctic Leopard XE Pro S\u003c\/li\u003e\n\u003cli\u003eArctic Leopard XE Pro S Enduro\u003c\/li\u003e\n\u003cli\u003eArctic Leopard XE Pro R\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eImportant Notes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequires the \u003ca href=\"https:\/\/darwinev.com\/products\/tmb-linkage-sirris-r38-arctic-leopard-xe-pro-s-enduro-r\"\u003e\u003cstrong\u003eTMB Sirris R38 Linkage\u003c\/strong\u003e\u003c\/a\u003e (sold separately).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eChoose the appropriate spring option based on rider weight.\u003c\/li\u003e\n\u003cli\u003eDesigned to pair with the Sirris F43 CMX Fork for balanced front and rear suspension performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSuspension Tuning Recommendations\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eR38 Shock\u003c\/th\u003e\n\u003cth\u003eMedium\u003c\/th\u003e\n\u003cth\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Setting\u003c\/td\u003e\n\u003ctd\u003eLSC 13 \/ HSC 12\u003c\/td\u003e\n\u003ctd\u003eLSC 11 \/ HSC 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound Setting\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e110\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDo I really need the TMB linkage for this shock to work on my Arctic Leopard?\u003c\/h3\u003e\n\u003cp\u003eYes. The stock Arctic Leopard linkage will not work with the Sirris R38 Shock because the shock is longer. The \u003ca href=\"https:\/\/darwinev.com\/products\/tmb-linkage-sirris-r38-arctic-leopard-xe-pro-s-enduro-r\"\u003e\u003cstrong\u003eTMB Sirris R38 Linkage\u003c\/strong\u003e\u003c\/a\u003e was designed specifically for the R38 and is required for installation on the Arctic Leopard XE Pro S, Enduro, and R.\u003c\/p\u003e\n\u003ch3\u003eDoes the R38 Shock have more travel than the stock shock?\u003c\/h3\u003e\n\u003cp\u003eThe motorcycle's wheel travel and ride height remain the same as stock. However, because the R38 uses larger, moto-style internal components, the shock itself has less stroke than the stock shock. The TMB linkage changes the suspension motion ratio to compensate for the shorter shock stroke while maintaining the intended wheel travel.\u003c\/p\u003e\n\u003ch3\u003eDoes the R38 Shock and TMB linkage fit without frame modifications?\u003c\/h3\u003e\n\u003cp\u003eYes. No frame modifications are required. The R38 Shock and TMB linkage are designed as a bolt-on solution for the Arctic Leopard XE Pro S, Enduro, and R. The TMB linkage is required, as the stock Arctic Leopard linkage is not compatible with the R38.\u003c\/p\u003e\n\u003ch3\u003eDoes the R38 Shock and TMB linkage affect the bike's geometry or stance?\u003c\/h3\u003e\n\u003cp\u003eNo. When paired with the \u003cstrong\u003eSirris CMX 220 Fork\u003c\/strong\u003e and TMB linkage, the R38 Shock maintains the Arctic Leopard's intended geometry and stance.\u003c\/p\u003e\n\u003ch3\u003eCan I buy the TMB linkage separately?\u003c\/h3\u003e\n\u003cp\u003eYes. The TMB linkage is available separately through TMB and participating dealers.\u003c\/p\u003e\n\u003ch3\u003eDoes the TMB linkage ship with the R38 Shock?\u003c\/h3\u003e\n\u003cp\u003eThe TMB linkage is sold separately and must be added to your order along with the R38 Shock. When purchased together, the linkage fits inside the shock packaging and can ship with the shock as a single shipment.\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140 - 180 lbs)","offer_id":52381203464488,"sku":"SIR-R38-AL-M","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180 - 220 lbs)","offer_id":52381203497256,"sku":"SIR-R38-AL-H","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-R38-Shock-2.jpg?v=1784771369"},{"product_id":"tmb-linkage-sirris-r38-arctic-leopard-xe-pro-s-enduro-r","title":"TMB Linkage for Sirris R38: Arctic Leopard XE Pro S \/ Enduro \/ R","description":"\u003cp\u003eThe TMB Linkage is designed specifically for installing the \u003cstrong\u003eSirris R38 rear shock\u003c\/strong\u003e on the Arctic Leopard XE Pro S, Enduro, and R.\u003c\/p\u003e\n\u003cp\u003eBecause the R38 uses a different shock length and travel than the stock Arctic Leopard shock, the factory linkage is not compatible. The TMB linkage changes the suspension motion ratio to work correctly with the R38 while maintaining the bike's stock wheel travel, ride height, and geometry.\u003c\/p\u003e\n\u003cp\u003eThis is a \u003cstrong\u003edirect bolt-on installation\u003c\/strong\u003e with no frame modifications required.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRequired when installing the R38 on compatible Arctic Leopard models\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the \u003ca href=\"https:\/\/darwinev.com\/products\/sirris-r38-shock-arctic-leopard-xe-pro-s-enduro-r\"\u003e\u003cstrong\u003eSirris R38 rear shock on Arctic Leopard XE Pro S \/ Enduro \/ R\u003c\/strong\u003e\u003c\/a\u003e electric dirt bike models\u003c\/li\u003e\n\u003cli\u003eMaintains stock wheel travel and ride height\u003c\/li\u003e\n\u003cli\u003ePreserves factory bike geometry and stance\u003c\/li\u003e\n\u003cli\u003eOptimized motion ratio for the R38 shock\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation with no frame modifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eArctic Leopard XE Pro S\u003c\/li\u003e\n\u003cli\u003eArctic Leopard XE Pro S Enduro\u003c\/li\u003e\n\u003cli\u003eArctic Leopard XE Pro R\u003c\/li\u003e\n\u003cli\u003eSirris R38 rear shock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The stock Arctic Leopard linkage cannot be used with the Sirris R38. The TMB linkage is required for proper R38 installation and suspension operation.\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Default Title","offer_id":52410211565864,"sku":"SIR-R38-LNKG-AL","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/TMB-Linkage-Sirris-R38-Arctic-Leopard-XE-Pro.jpg?v=1789762604"},{"product_id":"sirris-f43-cmx-fork-arctic-leopard-xe-pro-s-enduro","title":"Sirris F43 CMX Fork: Arctic Leopard XE Pro S \/ Enduro","description":"\u003cp\u003eUpgrade your Arctic Leopard XE Pro S or Enduro with the \u003cstrong\u003eSirris F43 CMX Fork\u003c\/strong\u003e. Built around Sirris' oversized, race-proven F43 chassis, this 220mm travel fork combines 43mm stanchions with the CMX (Compact Motocross) closed-cartridge damping system for increased front-end control, stability, and durability during aggressive off-road riding.\u003c\/p\u003e\n\u003cp\u003eThis Arctic Leopard version is specifically configured for the XE Pro S and Enduro with a drop clamp, dedicated wheel spacers, and 220mm brake rotor bracket for proper fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This fork fits the \u003cstrong\u003eArctic Leopard XE Pro S and Enduro\u003c\/strong\u003e only. The Arctic Leopard XE Pro R requires a different F43 fork due to its brake bracket configuration and is available as a separate product.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e140 lbs - 180 lbs\u003c\/strong\u003e (Medium = 4.0\/3.6 springs)\u003cbr\u003e\u003cstrong\u003e180 lbs - 220 lbs\u003c\/strong\u003e (Heavy = 4.0\/4.0 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left side\/right side.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSirris F43 CMX Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e220mm Travel\u003c\/strong\u003e — provides substantial suspension travel for aggressive trail riding, jumps, rough terrain, and higher-speed riding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversized 43mm Stanchions\u003c\/strong\u003e — high-tensile steel construction with hard chrome finish for increased stiffness, durability, and steering precision\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMX Closed-Cartridge Damping\u003c\/strong\u003e — symmetrical, adjustable closed cartridges with high-flow pistons and fully tunable compression and rebound valving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-Free Compression Adjustment\u003c\/strong\u003e — allows quick compression changes without additional tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic Bottom-Out Control\u003c\/strong\u003e — hydraulic bump stop helps soften hard landings while allowing maximum usable stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e178mm Fork Spacing\u003c\/strong\u003e — provides additional clearance and flexibility for dirt and street tire setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArctic Leopard Drop Clamp\u003c\/strong\u003e — billet aluminum drop clamp increases total fork length to 800mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Stiff Race-Grade Axle\u003c\/strong\u003e — designed to improve steering precision, front-end feel, and stability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable Brake Caliper Bracket\u003c\/strong\u003e — allows additional flexibility for future brake and wheel upgrades\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e220mm Brake Rotor Bracket Included\u003c\/strong\u003e — configured specifically for the Arctic Leopard XE Pro S \/ Enduro application\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArctic Leopard Wheel Spacers Included\u003c\/strong\u003e — model-specific spacers are included for proper wheel fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorcycle-Style Top Cap\u003c\/strong\u003e — allows more consistent control over steering bearing tension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eArctic Leopard Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis Sirris F43 CMX Fork model is designed specifically for the \u003cstrong\u003eArctic Leopard XE Pro S and Enduro\u003c\/strong\u003e only. The fork includes the required Arctic Leopard wheel spacers and 220mm rotor brake bracket.\u003c\/p\u003e\n\u003cp\u003eThe fork uses a \u003cstrong\u003e4-bolt direct mount stem\u003c\/strong\u003e. Later XE Pro S models are equipped with a compatible direct mount stem. Some earlier XE Pro S models may require a direct mount stem upgrade, so we recommend checking your bike before installation.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eArctic Leopard XE Pro R\u003c\/strong\u003e uses a different Sirris F43 fork model because of its brake bracket configuration. \u003ca href=\"\/products\/sirris-f43-cmx-fork-arctic-leopard-xe-pro-r\" title=\"Sirris F43 CMX Fork: Arctic Leopard XE Pro R\"\u003eShop here for the Sirris F43 CMX Fork: Arctic Leopard XE Pro R\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eComplete Arctic Leopard Suspension Setup\u003c\/h3\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-Suspension-Arctic-Leopard-XE-Pro-S-Enduro-R-bike.jpg\" alt=\"Sirris Complete Suspension Set for Arctic Leopard XE Pro S \/ Enduro \/ R - F43 CMX Fork + R38 Shock\" style=\"margin-right: 10px; margin-bottom: 10px; float: left; max-width: 200px;\"\u003e\u003c\/div\u003e\n\u003cp\u003eFor a balanced front and rear suspension upgrade, pair the F43 CMX Fork with the \u003cstrong\u003e\u003ca href=\"https:\/\/darwinev.com\/products\/sirris-r38-shock-arctic-leopard-xe-pro-s-enduro-r\" title=\"Sirris R38 Shock For Arctic Leopard\"\u003eSirris R38 Rear Shock for the Arctic Leopard XE Pro S \/ Enduro \/ R\u003c\/a\u003e\u003c\/strong\u003e. The R38 rear shock requires the matching\u003cstrong\u003e \u003c\/strong\u003eTMB Linkage for Sirris R38 and cannot be used with the factory Arctic Leopard linkage.\u003c\/p\u003e\n\u003ch2 style=\"clear: both;\"\u003eF43 CMX Fork Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUpside down fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTravel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFree Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e775mm (800mm total length with drop clamp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFork Spacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e178mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFork Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 kg per leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStanchions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e43mm high-tensile steel with hard chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOuter Tubes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, Type III hard anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrop Outs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6061 aluminum, Type II anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrake Mounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDesigned for 220mm rotor; 220mm brake bracket included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTriple Clamps\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDrop clamp, billet 6061 aluminum, Type II anodized, black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSteer Tube\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, Type II anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStem Mount\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-bolt direct mount stem only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDamping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCMX symmetrical adjustable closed cartridge with spring-backed modified IFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjusters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExternal tool-free compression; adjustable rebound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNOK MX seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBushings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDaido MX bushings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGuards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-impact PP, 210° wraparound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFork Tuning \u0026amp; Rider Weight\u003c\/h2\u003e\n\u003cp\u003eSirris offers two spring configurations based on rider weight. Listed rider weights are body weight without riding gear; approximately 15 lbs of riding gear is factored into the recommended ranges. The weight of major upgrades such as batteries and controllers should also be considered when selecting a spring rate.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 140-180 lbs — 4.0\/3.6 fork springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy:\u003c\/strong\u003e 180-220 lbs — 4.0\/4.0 fork springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRiders near the upper end of a weight range or aggressive riders may benefit from moving to the heavier spring configuration and adjusting preload to achieve proper sag.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 333.2px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"height: 19.6px; width: 62.5436%;\"\u003eFORK Recommendations\u003c\/th\u003e\n\u003cth style=\"height: 19.6px; width: 18.9895%;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"height: 19.6px; width: 17.77%;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e4.0\/3.6\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e4.0\/4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e16\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e16\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e5\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e5\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e120cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eHeadset Bearing Spacer\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px; width: 36.7596%;\" colspan=\"2\"\u003ereuse stock spacer, seal, bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 62.5436%;\"\u003eSteerer Spacer\u003cbr\u003e\u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 39.2px; width: 36.7596%;\" colspan=\"2\"\u003e430-38-018 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 62.5436%;\"\u003eCaliper Bracket\u003cbr\u003e\u003cspan style=\"font-size: .8em;\"\u003eCaliper bracket is 220mm only. Comes stock with a 220mm rotor.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 39.2px; width: 36.7596%;\" colspan=\"2\"\u003e430-22-038, 90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.8px;\"\u003e\n\u003ctd style=\"height: 58.8px; width: 62.5436%;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 58.8px; width: 36.7596%;\" colspan=\"2\"\u003e430-22-036-360-02 (brake side)\u003cbr\u003e430-22-036-267-02 (non-brake side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 240.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 48.0833px;\"\u003eR38 Shock Settings\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 48.0833px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 48.0833px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003eLSC 13 \/ HSC 12\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003eLSC 11 \/HSC 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e8\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e110\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0667px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0667px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0667px;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0667px;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSettings\u003c\/h3\u003e\n\u003cp\u003eSettings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.\u003c\/p\u003e\n\u003ch4\u003eCMX Tune Starting Point:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAssuming neutral riding position, and 15 lbs gear\u003c\/li\u003e\n\u003cli\u003eWeights of upgrades (battery, controller, etc) to be added to rider weight\u003c\/li\u003e\n\u003cli\u003eRiders close to a weight cut off need to adjust preload to compensate\u003c\/li\u003e\n\u003cli\u003eVery aggressive\/pro riders to consider +1 weight class and drop preload to get sag. Especially if in the upper range.\u003c\/li\u003e\n\u003cli\u003eRider preference and riding conditions may require a different setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eExample:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e160 lb rider without riding gear, 20 additional lbs with upgraded controller\/battery\u003c\/li\u003e\n\u003cli\u003eWeight calculation 160+20=180\u003c\/li\u003e\n\u003cli\u003eAggressive rider = Heavy tune with low preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider = Medium tune with high preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSirris F43 CMX Fork Installation\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Direct Mount Setup\u003cbr\u003e\u003c\/strong\u003eUpgrade your stock Arctic Leopard XE Pro S \/ Enduro easily with the F43 direct mount front suspension system. No additional modifications or parts are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation\u003cbr\u003e\u003c\/strong\u003eThe Sirris F43 CMX Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-arctic-leopard-owners-guide-090326.pdf?v=1788963830\" rel=\"noopener\" target=\"_blank\"\u003eOwner’s Guide: Sirris F43 \u0026amp; R38 CMX For Arctic Leopard (PDF) ›\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Black","offer_id":52472018796840,"sku":"SIR-F43-AL-SE-D-B-M","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Black","offer_id":52472018829608,"sku":"SIR-F43-AL-SE-D-B-L","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-CMX-Fork-Arctic-Leopard-XE-Pro-S-Enduro-front.jpg?v=1789834382"},{"product_id":"sirris-f43-cmx-fork-arctic-leopard-xe-pro-r","title":"Sirris F43 CMX Fork: Arctic Leopard XE Pro R","description":"\u003cp\u003eUpgrade your Arctic Leopard XE Pro R with the \u003cstrong\u003eSirris F43 CMX Fork\u003c\/strong\u003e. Built around Sirris' oversized, race-proven F43 chassis, this 220mm travel fork combines 43mm stanchions with the CMX (Compact Motocross) closed-cartridge damping system for increased front-end control, stability, and durability during aggressive off-road riding.\u003c\/p\u003e\n\u003cp\u003eThis Arctic Leopard version is specifically configured for the XE Pro R with a drop clamp, dedicated wheel spacers, and 240mm brake rotor bracket for proper fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This fork fits the \u003cstrong\u003eArctic Leopard XE Pro R\u003c\/strong\u003e only. The Arctic Leopard XE Pro S and Enduro require a different F43 fork tune due to their brake bracket configuration and are available as a separate product.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e140 lbs - 180 lbs\u003c\/strong\u003e (Medium = 4.0\/3.6 springs)\u003cbr\u003e\u003cstrong\u003e180 lbs - 220 lbs\u003c\/strong\u003e (Heavy = 4.0\/4.0 springs)\u003cbr\u003e\u003cem\u003eFork spring rates listed above are left side\/right side.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSirris F43 CMX Fork Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e220mm Travel\u003c\/strong\u003e — provides substantial suspension travel for aggressive trail riding, jumps, rough terrain, and higher-speed riding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversized 43mm Stanchions\u003c\/strong\u003e — high-tensile steel construction with hard chrome finish for increased stiffness, durability, and steering precision\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCMX Closed-Cartridge Damping\u003c\/strong\u003e — symmetrical, adjustable closed cartridges with high-flow pistons and fully tunable compression and rebound valving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-Free Compression Adjustment\u003c\/strong\u003e — allows quick compression changes without additional tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic Bottom-Out Control\u003c\/strong\u003e — hydraulic bump stop helps soften hard landings while allowing maximum usable stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e178mm Fork Spacing\u003c\/strong\u003e — provides additional clearance and flexibility for dirt and street tire setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArctic Leopard Drop Clamp\u003c\/strong\u003e — billet aluminum drop clamp increases total fork length to 800mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Stiff Race-Grade Axle\u003c\/strong\u003e — designed to improve steering precision, front-end feel, and stability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable Brake Caliper Bracket\u003c\/strong\u003e — allows additional flexibility for future brake and wheel upgrades\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e240mm Brake Rotor Bracket Included\u003c\/strong\u003e — configured specifically for the Arctic Leopard XE Pro R application\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArctic Leopard XE Pro R Wheel Spacers Included\u003c\/strong\u003e — model-specific spacers are included for proper wheel fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotorcycle-Style Top Cap\u003c\/strong\u003e — allows more consistent control over steering bearing tension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eArctic Leopard Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis Sirris F43 CMX Fork model is designed specifically for the \u003cstrong\u003eArctic Leopard XE Pro R\u003c\/strong\u003e only. The fork includes the required Arctic Leopard XE Pro R wheel spacers and 240mm rotor brake bracket.\u003c\/p\u003e\n\u003cp\u003eThe fork uses a \u003cstrong\u003e4-bolt direct mount stem\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eArctic Leopard XE Pro S and Enduro\u003c\/strong\u003e use a different Sirris F43 fork model because of their brake bracket configuration. \u003ca href=\"\/products\/sirris-f43-cmx-fork-arctic-leopard-xe-pro-s-enduro\" title=\"Sirris F43 CMX Fork: Arctic Leopard XE Pro S \/ Enduro\"\u003eShop here for the Sirris F43 CMX Fork: Arctic Leopard XE Pro S \/ Enduro\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eComplete Arctic Leopard Suspension Setup\u003c\/h3\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-Suspension-Arctic-Leopard-XE-Pro-S-Enduro-R-bike.jpg\" alt=\"Sirris Complete Suspension Set for Arctic Leopard XE Pro S \/ Enduro \/ R - F43 CMX Fork + R38 Shock\" style=\"margin-right: 10px; margin-bottom: 10px; float: left; max-width: 200px;\"\u003e\u003c\/div\u003e\n\u003cp\u003eFor a balanced front and rear suspension upgrade, pair the F43 CMX Fork with the \u003cstrong\u003e\u003ca href=\"https:\/\/darwinev.com\/products\/sirris-r38-shock-arctic-leopard-xe-pro-s-enduro-r\" title=\"Sirris R38 Shock For Arctic Leopard\"\u003eSirris R38 Rear Shock for the Arctic Leopard XE Pro S \/ Enduro \/ R\u003c\/a\u003e\u003c\/strong\u003e. The R38 rear shock requires the matching\u003cstrong\u003e \u003c\/strong\u003eTMB Linkage for Sirris R38 and cannot be used with the factory Arctic Leopard linkage.\u003c\/p\u003e\n\u003ch2 style=\"clear: both;\"\u003eF43 CMX Fork Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUpside down fork\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTravel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e220mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFree Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e775mm (800mm total length with drop clamp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFork Spacing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e178mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFork Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 kg per leg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStanchions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e43mm high-tensile steel with hard chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOuter Tubes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, Type III hard anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrop Outs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6061 aluminum, Type II anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrake Mounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDesigned for 240mm rotor; 240mm brake bracket included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTriple Clamps\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDrop clamp, billet 6061 aluminum, Type II anodized, black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSteer Tube\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSeamless 7050 aluminum, Type II anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStem Mount\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-bolt direct mount stem only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDamping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCMX symmetrical adjustable closed cartridge with spring-backed modified IFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjusters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eExternal tool-free compression; adjustable rebound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNOK MX seals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBushings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDaido MX bushings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGuards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-impact PP, 210° wraparound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFork Tuning \u0026amp; Rider Weight\u003c\/h2\u003e\n\u003cp\u003eSirris offers two spring configurations based on rider weight. Listed rider weights are body weight without riding gear; approximately 15 lbs of riding gear is factored into the recommended ranges. The weight of major upgrades such as batteries and controllers should also be considered when selecting a spring rate.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 140-180 lbs — 4.0\/3.6 fork springs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy:\u003c\/strong\u003e 180-220 lbs — 4.0\/4.0 fork springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRiders near the upper end of a weight range or aggressive riders may benefit from moving to the heavier spring configuration and adjusting preload to achieve proper sag.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 333.2px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"height: 19.6px; width: 62.5436%;\"\u003eFORK Recommendations\u003c\/th\u003e\n\u003cth style=\"height: 19.6px; width: 18.9895%;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"height: 19.6px; width: 17.77%;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eRider Weight (lbs) (No Gear)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e140-180\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e4.0\/3.6\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e4.0\/4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eFork Height in Upper Clamp (mm)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e16\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e16\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003ePreload Setting (mm of preload R and L fork legs)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e5\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e5\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eOil Volume (Bath Oil)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e100cc\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e120cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eOil Weight* (bath\/cartridge)\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 18.9895%;\"\u003e20\/5\u003c\/td\u003e\n\u003ctd style=\"height: 19.6px; width: 17.77%;\"\u003e20\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"height: 19.6px; width: 62.5436%;\"\u003eHeadset Bearing Spacer\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 19.6px; width: 36.7596%;\" colspan=\"2\"\u003ereuse stock spacer, seal, bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 62.5436%;\"\u003eSteerer Spacer\u003cbr\u003e\u003cspan style=\"font-size: .8em;\"\u003e5mm thick above top clamp \/ beneath top cap\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 39.2px; width: 36.7596%;\" colspan=\"2\"\u003e430-38-018 x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"height: 39.2px; width: 62.5436%;\"\u003eCaliper Bracket\u003cbr\u003e\u003cspan style=\"font-size: .8em;\"\u003eCaliper bracket is 240mm only. Comes stock with a 240mm rotor.\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 39.2px; width: 36.7596%;\" colspan=\"2\"\u003e430-22-039, 78.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.8px;\"\u003e\n\u003ctd style=\"height: 58.8px; width: 62.5436%;\"\u003eWheel Spacers\u003c\/td\u003e\n\u003ctd style=\"text-align: center; height: 58.8px; width: 36.7596%;\" colspan=\"2\"\u003e430-22-036-360-02 (brake side)\u003cbr\u003e430-22-036-267-02 (non-brake side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; max-width: 600px; height: 240.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003cth style=\"width: 71.7047%; height: 48.0833px;\"\u003eR38 Shock Settings\u003c\/th\u003e\n\u003cth style=\"width: 14.2355%; height: 48.0833px;\"\u003eMedium\u003c\/th\u003e\n\u003cth style=\"width: 13.3568%; height: 48.0833px;\"\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eCompression Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003eLSC 13 \/ HSC 12\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003eLSC 11 \/HSC 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eRebound Setting\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e8\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0833px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0833px;\"\u003eSpring Rate \u003cspan style=\"font-size: .8em;\"\u003e(N\/mm, lb\/in)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0833px;\"\u003e110\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0833px;\"\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 48.0667px;\"\u003e\n\u003ctd style=\"width: 71.7047%; height: 48.0667px;\"\u003ePreload Setting \u003cspan style=\"font-size: .8em;\"\u003e(mm)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.2355%; height: 48.0667px;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"width: 13.3568%; height: 48.0667px;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSettings\u003c\/h3\u003e\n\u003cp\u003eSettings are number of clicks from the closed position (full clockwise). Once they are in the closed position, back them out (counter-clockwise) according to the number of clicks indicated in the chart above to get you to factory settings.\u003c\/p\u003e\n\u003ch4\u003eCMX Tune Starting Point:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAssuming neutral riding position, and 15 lbs gear\u003c\/li\u003e\n\u003cli\u003eWeights of upgrades (battery, controller, etc) to be added to rider weight\u003c\/li\u003e\n\u003cli\u003eRiders close to a weight cut off need to adjust preload to compensate\u003c\/li\u003e\n\u003cli\u003eVery aggressive\/pro riders to consider +1 weight class and drop preload to get sag. Especially if in the upper range.\u003c\/li\u003e\n\u003cli\u003eRider preference and riding conditions may require a different setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eExample:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e160 lb rider without riding gear, 20 additional lbs with upgraded controller\/battery\u003c\/li\u003e\n\u003cli\u003eWeight calculation 160+20=180\u003c\/li\u003e\n\u003cli\u003eAggressive rider = Heavy tune with low preload\u003c\/li\u003e\n\u003cli\u003eRelaxed rider = Medium tune with high preload\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSirris F43 CMX Fork Installation\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Direct Mount Setup\u003cbr\u003e\u003c\/strong\u003eUpgrade your stock Arctic Leopard XE Pro R with the F43 direct mount front suspension system, configured specifically for the XE Pro R application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Hour Break-In Period Recommendation\u003cbr\u003e\u003c\/strong\u003eThe Sirris F43 CMX Fork will break-in during the first 5 hours of use with significant improvements in friction. We recommend that you don’t make significant changes to clicker positions or valving until after the 5-hour break-in period.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-arctic-leopard-owners-guide-090326.pdf?v=1788963830\" rel=\"noopener\" target=\"_blank\"\u003eOwner’s Guide: Sirris F43 \u0026amp; R38 CMX For Arctic Leopard (PDF) ›\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140-180 lbs) \/ Drop Clamp \/ Black","offer_id":67580599238952,"sku":"SIR-F43-AL-R-D-B-M","price":2350.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180-220 lbs) \/ Drop Clamp \/ Black","offer_id":67580599271720,"sku":"SIR-F43-AL-R-D-B-L","price":2350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-F43-CMX-Fork-Arctic-Leopard-XE-Pro-S-Enduro-front.jpg?v=1789834382"},{"product_id":"prickly-triangle-linkage-kit-sirris-r38-surron-lbx","title":"Prickly Triangle \u0026 Linkage Kit For Sirris R38: Surron LBX","description":"\u003cp\u003eThe Prickly Triangle \u0026amp; Linkage Kit is a purpose-built suspension upgrade designed specifically for installing the Sirris R38 Rear Shock on the Surron Light Bee X (LBX). Developed in collaboration with Sirris, this kit replaces the factory linkage and rear triangle to accommodate the larger R38 shock while maintaining proper suspension geometry, rear ride height, and wheel travel.\u003c\/p\u003e\n\u003cp\u003ePrecision CNC-machined from 6061-T6 billet aluminum, the Prickly kit features a durable hard anodized finish, oversized 18mm Schaeffler bearings, and factory-applied waterproof synthetic Motorex grease for exceptional strength, precision, and long-term durability under demanding off-road conditions.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the \u003ca href=\"\/products\/sirris-r38-shock-surron-light-bee-x\"\u003e\u003cstrong\u003eSirris R38 Rear Shock on Surron LBX\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eComplete replacement linkage and rear triangle kit\u003c\/li\u003e\n\u003cli\u003eMaintains factory rear ride height and wheel travel\u003c\/li\u003e\n\u003cli\u003eOptimized suspension leverage ratio for the Sirris R38 shock\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-machined from 6061-T6 billet aluminum\u003c\/li\u003e\n\u003cli\u003eHard anodized black finish for maximum durability\u003c\/li\u003e\n\u003cli\u003eOversized 18mm Schaeffler linkage bearings for increased strength and longevity\u003c\/li\u003e\n\u003cli\u003eBearings pre-packed with waterproof synthetic Motorex grease\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation without drilling or frame modifications\u003c\/li\u003e\n\u003cli\u003eDesigned, engineered, and machined in-house by Prickly Motorsports\u003c\/li\u003e\n\u003cli\u003ePairs with the Sirris F43 CMX 220mm Fork for a complete suspension upgrade\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The factory Surron Light Bee X linkage and rear triangle are \u003cstrong\u003enot compatible\u003c\/strong\u003e with the Sirris R38 Shock. Both components must be replaced with this R38-specific Prickly Triangle \u0026amp; Linkage Kit for proper installation and suspension operation.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e R38-Specific Triangle \u0026amp; Linkage Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e CNC-Machined 6061-T6 Billet Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Hard Anodized Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e Oversized 18mm Schaeffler Linkage Bearings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLubrication:\u003c\/strong\u003e Waterproof Synthetic Motorex Grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct Bolt-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRide Height:\u003c\/strong\u003e Maintains Factory Rear Ride Height\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Travel:\u003c\/strong\u003e Maintains Factory Rear Wheel Travel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Prickly Motorsports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSurron Light Bee X (LBX) equipped with the Sirris R38 Rear Shock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eImportant Notes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequired for installation of the \u003cstrong\u003e\u003ca href=\"\/products\/sirris-r38-shock-surron-light-bee-x\"\u003eSirris R38 Shock on the Surron Light Bee X\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIncludes the R38-specific linkage and rear triangle.\u003c\/li\u003e\n\u003cli\u003eFactory LBX linkage and triangle cannot be reused with the R38 shock.\u003c\/li\u003e\n\u003cli\u003eNot intended for use with the factory rear shock or other aftermarket shocks unless specifically approved by the manufacturer.\u003c\/li\u003e\n\u003cli\u003eNew Surron LB2 compatibility is under development and has not been confirmed.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended. Follow the manufacturer's installation instructions and torque specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eComplete Your Suspension Upgrade\u003c\/h2\u003e\n\u003cp\u003eThe Prickly Triangle \u0026amp; Linkage Kit is designed to work with the \u003ca href=\"\/products\/sirris-r38-shock-surron-light-bee-x\"\u003e\u003cstrong\u003eSirris R38 Rear Shock for Surron Light Bee X\u003c\/strong\u003e\u003c\/a\u003e (sold separately). Together, these components deliver motocross-inspired rear suspension performance while maintaining factory rear wheel travel and chassis geometry.\u003c\/p\u003e\n\u003cp\u003eFor balanced front and rear suspension performance, pair the R38 rear shock and Prickly linkage system with the \u003ca href=\"\/products\/sirris-f43-fork-cmx-tune-sur-ron-light-bee-x\"\u003e\u003cstrong\u003eSirris F43 CMX 220mm Fork for Surron LBX\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Default Title","offer_id":67981509034280,"sku":"SIR-R38-LNKG-LBX","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/prickly-sirris-lbx-triangle-linkage-kit_59b8b6d7-16b6-4faf-b4f4-905aceeb7374.webp?v=1792808409"},{"product_id":"sirris-r38-shock-surron-light-bee-x","title":"Sirris R38 Shock: Surron Light Bee X","description":"\u003cp\u003eThe Sirris R38 Rear Shock upgrade brings true motocross-inspired suspension technology to the Surron Light Bee X (LBX). Based on the proven Sirris R46 platform, the R38 features oversized internal architecture, massive oil flow, and an advanced 2-Stage Compression (2SC) damping system for exceptional control, consistency, and durability on aggressive trails, jumps, and high-speed terrain.\u003c\/p\u003e\n\u003cp\u003eUnlike typical mountain bike-based e-moto shocks, the R38 Shock is engineered specifically for the demands of lightweight electric dirt bikes. Independent high-speed and low-speed compression adjustment, rebound adjustment, and spring preload allow riders to fine-tune suspension performance for any riding style or terrain.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the Surron Light Bee X (LBX)\u003c\/li\u003e\n\u003cli\u003eMoto-inspired R46 internal architecture in a compact chassis\u003c\/li\u003e\n\u003cli\u003eIndependent high-speed and low-speed compression adjustment (2SC)\u003c\/li\u003e\n\u003cli\u003eTool-free low-speed compression and rebound adjustment\u003c\/li\u003e\n\u003cli\u003eAdjustable spring preload for personalized suspension setup\u003c\/li\u003e\n\u003cli\u003eHigh-flow 38mm piston for consistent damping and reduced fade\u003c\/li\u003e\n\u003cli\u003eLarge 16mm hollow hard-chromed shaft for maximum strength\u003c\/li\u003e\n\u003cli\u003eType III hard anodized aluminum body with ACME threads\u003c\/li\u003e\n\u003cli\u003eCMX (Compact Motocross Tune) optimized for aggressive off-road riding\u003c\/li\u003e\n\u003cli\u003eChrome-plated, Teflon-lined spherical bearings for durability\u003c\/li\u003e\n\u003cli\u003eMaintains factory rear ride height and wheel travel with the required Prickly linkage system\u003c\/li\u003e\n\u003cli\u003ePairs perfectly with the \u003cstrong\u003e\u003ca href=\"\/products\/sirris-f43-fork-cmx-tune-sur-ron-light-bee-x\"\u003eSirris F43 CMX Fork: Surron Light Bee X\u003c\/a\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The original factory Surron Light Bee X linkage and rear triangle are \u003cstrong\u003enot compatible\u003c\/strong\u003e with the Sirris R38 Shock. The R38 requires the \u003cstrong\u003e\u003ca href=\"\/products\/prickly-triangle-linkage-kit-sirris-r38-surron-lbx\"\u003ePrickly Triangle \u0026amp; Linkage Kit for Sirris R38: Surron LBX\u003c\/a\u003e\u003c\/strong\u003e (sold separately). This purpose-built kit accommodates the larger R38 shock while maintaining factory rear ride height and wheel travel. No frame modifications are required.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 269mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e 68mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Type:\u003c\/strong\u003e Piggyback, steel spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.3 lbs (1.5 kg) without spring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Speed Compression:\u003c\/strong\u003e 18 clicks, tool-free adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Compression:\u003c\/strong\u003e 24 clicks, 20mm hex adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebound:\u003c\/strong\u003e 24 clicks, tool-free adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Preload:\u003c\/strong\u003e Adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Piston:\u003c\/strong\u003e 38mm high-flow CNC 6061 billet aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft:\u003c\/strong\u003e 16mm hollow, induction-hardened, hard-chromed steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Body:\u003c\/strong\u003e Seamless 6061 aluminum, Type III hard anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReservoir:\u003c\/strong\u003e R46-spec internal floating piston system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom-Out Protection:\u003c\/strong\u003e MCU bumper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop-Out Protection:\u003c\/strong\u003e Rubber bumper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeals:\u003c\/strong\u003e HNBR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTune:\u003c\/strong\u003e CMX (Compact Motocross)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpring Options\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMedium: 140 lbs - 180 lbs (100 N\/mm spring)\u003c\/li\u003e\n\u003cli\u003eHeavy: 180 lbs - 220 lbs (110 N\/mm spring)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRider weight ranges are based on body weight without riding gear. Sirris accounts for approximately 15 lbs of riding gear in its recommended ranges. Additional weight from upgraded batteries, controllers, and other components should be considered when selecting a spring rate.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSurron Light Bee X (LBX)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eImportant Notes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRequires the \u003cstrong\u003e\u003ca href=\"\/products\/prickly-triangle-linkage-kit-sirris-r38-surron-lbx\"\u003ePrickly Triangle \u0026amp; Linkage Kit for Sirris R38: Surron LBX\u003c\/a\u003e\u003c\/strong\u003e (sold separately).\u003c\/li\u003e\n\u003cli\u003eStock Surron LBX linkage and rear triangle are not compatible with the R38 Shock.\u003c\/li\u003e\n\u003cli\u003eInstallation is a direct bolt-on solution without drilling, fabrication, or frame modifications.\u003c\/li\u003e\n\u003cli\u003eThe Prickly linkage system compensates for the R38's shorter shock stroke, maintaining factory rear wheel travel and ride height.\u003c\/li\u003e\n\u003cli\u003eDesigned to pair with the \u003cstrong\u003e\u003ca href=\"\/products\/sirris-f43-fork-cmx-tune-sur-ron-light-bee-x\"\u003eSirris F43 CMX Fork\u003c\/a\u003e\u003c\/strong\u003e for balanced front and rear suspension performance.\u003c\/li\u003e\n\u003cli\u003eFitment for the newer Surron Light Bee 2 (LB2) is under development and is not confirmed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eR38 Shock Tuning Recommendations For Surron LBX\u003c\/h2\u003e\n\u003cp\u003eThe following table provides spring specifications and adjustment information for the Sirris R38 Shock on the Surron Light Bee X.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; max-width: 600px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eR38 Shock\u003c\/th\u003e\n\u003cth\u003eMedium\u003c\/th\u003e\n\u003cth\u003eHeavy\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRider Weight (lbs, No Gear)\u003c\/td\u003e\n\u003ctd\u003e140-180\u003c\/td\u003e\n\u003ctd\u003e180-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompression Setting\u003c\/td\u003e\n\u003ctd\u003eL-Speed 10 \/ H-Speed 12\u003c\/td\u003e\n\u003ctd\u003eL-Speed 10 \/ H-Speed 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRebound Setting\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate (N\/mm)\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreload Setting\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eR38 values above indicate available adjustment ranges, not recommended starting click positions. Refer to the Sirris Surron LBX owner's guide for model-specific initial compression, rebound, and preload settings.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuspension Installation \u0026amp; Setup:\u003c\/strong\u003e Refer to the \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/2351\/4092\/files\/sirris-2026-LBX-owners-guide-101526.pdf\"\u003eSurron Light Bee X F43\/R38 owner's guide\u003c\/a\u003e for installation procedures, recommended damping settings, spring preload, and torque specifications.\u003c\/p\u003e","brand":"Sirris","offers":[{"title":"Medium (140 - 180 lbs)","offer_id":68032023134504,"sku":"SIR-R38-LBX-M","price":899.0,"currency_code":"USD","in_stock":true},{"title":"Heavy (180 - 220 lbs)","offer_id":68032023167272,"sku":"SIR-R38-LBX-H","price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/files\/Sirris-R38-Shock-2.jpg?v=1784771369"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0688\/5160\/collections\/sirris-suspension-surron-ultra-bee-bike-19.jpg?v=1758577068","url":"https:\/\/darwinev.com\/collections\/sirris.oembed?page=2","provider":"Darwin EV","version":"1.0","type":"link"}