Brand new FRONT progressive springs are somewhat modern, but under more compression they change traits to be linear. This provides an excellent feeling & feedback for the automobile in most various track conditions. Marked with FOUR dots for effortless recognition. Pair of 2.
Available as a pair, the springs are separately measured, controlled, examined and matched to provide identical damping traits. Throughout the selection process, each springtime is compressed in many fine increments and the values recorded, then each spring is matched with another springtime of identical traits. XRAY goes the extra mile to make sure perfect spring matches, giving your car the predictability and persistence that you need to allow you to lead the pack.