and many other professional racing avenues
Since the metric system is used widely in the sport compact and road race market
4 inch length
This allows Swift Springs to manufacture a spring that is has more stroke
Swift Springs Metric Coilover Springs 65mm ID, 4 inch length, 24 kg/mm Pair Metric Coilover Springs and many other professional racing65mm ID, 4 inch length, 24 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