EXT Arma MX Coil Spring

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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 I nternal Diameter: Ø38.5 mm The lightest steel springs on the market Developed in EXT's automotive racing programs Coil Spring Weight Options (lbs): 400, 450, 500, 550, 600, 650 Adaptable for all types of dampers on the market Life duration: over 500.000 cycles Show more