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EXT Arma MX Coil Spring


2-Year Warranty

on all components

Expert Support

for our customers

FREE Shipping

continental US only

High performance 90mm (3.5″) max stroke MX Coil Spring

EXT Arma MX Coil Spring Features

  • Super Alloy Spring (proprietary super light design)
  • Highly Linear Ratio
  • Hard Epoxy Coating
  • Internal Diameter: Ø38.5 mm
  • The lightest steel springs on the market
  • Developed in EXT’s automotive racing programs
  • Coil Spring Weight Options: 450 lbs / 500 lbs / 550 lbs / 600 lbs
  • Adaptable for all types of dampers on the market
  • Life duration: over 500.000 cycles


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