10 inch length
Pirelli World Challenge
resulting in a lighter spring with less unsprung weight
increased traction and handling as well as a spring with less coils
Since the metric system is used widely in the sport compact and road race market
Swift Springs Metric Coilover Springs 60mm ID, 5 inch length, 13 kg/mm Pair Metric Coilover Springs 10 inch length60mm ID, 5 inch length, 13 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