Brand new replacement springs for EXT Arma MX shocks. High performance 90mm(3.5") max stroke MX Spring – 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 our automotive racing programs– 50lb increments; C90-450/C90-500/C90-550/C90-600– Adaptable for all type of dampers in the market– Life duration: over 500.000 cycles Spring Rate Suggestions The advanced tuning available on this shock allows a high degree of adjustment and tuning for the rider to dial in exactly how you want this shock to perform, from ultra-plush to ultra-stiff to anything in-between. Please see the recommended settings at the bottom of this page. Rider Weight Spring Extended Swingarm
