Progressively Wound Shock Spring - Orange - P15 - Spring Rate 195 lb/in - 285 lb/in
Race Tech's answer to the linkless PDS system
Easy fix for the problem of rear suspension being too harsh and too easy to bottom
Progressive spring gives more resistance to bottoming and supplies a plusher ride
Made from chrome silicon spring steel, shot-peened, heat-treated and preset to prevent sacking
The rates get stiffer as the numbers go higher.