The Yokomo RP Ultra Shock Spring Set is an all inclusive package that includes all seven spring rates, both linear and progressive. If you want to be prepared for any track surface, this is the ultimate spring tuning package.
The "Linear" type springs provide a consistent rate throughout the stroke. The "Progressive" type springs get stiffer as they compress, and this was achieved by changing the winding pitch within the spring. All RP springs are black, with the spring rate laser engraved on the end face of the spring. Plastic case included.
This product was added to our catalog on July 25, 2017