{"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 \u003cstrong\u003eTMB Sirris R38 Linkage\u003c\/strong\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 \u003cstrong\u003eTMB Sirris R38 Linkage\u003c\/strong\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 \u003cstrong\u003eTMB Sirris R38 Linkage\u003c\/strong\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","url":"https:\/\/darwinev.com\/products\/sirris-r38-shock-arctic-leopard-xe-pro-s-enduro-r","provider":"Darwin EV","version":"1.0","type":"link"}