Dial in your EXT Arma MX rear shock with a replacement coil spring in the rate that suits your setup. Choose 450 or 550 lb/in; each option is sold individually.
450 lb/in: C90-450. 550 lb/in: C90-550. A higher rate gives more resistance to compression. Choose using your bike, riding weight with gear and shock setup; contact us if you need help.
For bikes equipped with a compatible EXT Arma MX shock. This is not a universal replacement for an original-equipment shock. Confirm spring dimensions and shock compatibility before installation.
One coil spring in the selected rate. Shock and mounting hardware are not included.
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You can still order it now — it’s expected to ship in about .