Sprindex is a new coil spring system that allows riders to adjust and fine tune the spring rate of their coil shock. This addresses the primary reason why many riders and bike companies have been avoiding the greater performance of a coil shock over an air shock.

How does it work? Fewer active coils makes for a stiffer spring. Twisting the Sprindex dial varies the number of active coils.

Adjustment is done by hand and without tools. Sprindex springs are also lighter and more durable than ordinary steel springs because they are made with the highest tensile steel available. Sprindex is available in 3 different lengths to fit nearly all mountain bike coil shocks on the market.