Bump Spring Retainers 5/8" Shaft
The increase in spring rate is based on the upper limits of the vehicles factory shock valving
keeping or improving the comfort level while increasing performance is not an easy task
165 lbs/in Barrel Type
Swift Springs Metric Coilover Springs 60mm ID, 5 inch length, 12 kg/mm Pair Helper Springs Bump Spring Retainers 5/8" Shaft60mm ID, 5 inch length, 12 kg mm Swift Metric Coilover Springs are made from a proprietary (H5S. TW.) Material. This allows Swift Springs to manufacture a spring that is has more stroke, increased traction and handling as well as a spring with less coils, resulting in a lighter spring with less unsprung weight. The same springs are used in Super GT, Formula Nippon, F3, F3000, Super Taikyu, IMSA, Pirelli World Challenge, Rally America, VLN, Le Mans