Hyperco’s line of Dual Rate UHT Coil-Over Springs takes competition coil-over design to the next level.  These springs essentially provide the performance of an optimized stacked spring set-up, but in a single spring. The Dual Rate UHT Spring combines a relatively low initial spring rate, designed to absorb minor undulations and increase grip with a precise transition point and transition range to a secondary higher spring rate to improve roll control during cornering.

The precise placement of the transition range in the total spring displacement enables accurate shock valving because the initial rate is very linear and the transition range to the secondary rate is quite short.