Swift Springs Metric Coilover Springs 65mm ID, 7 inch length, 7 kg/mm Pair Metric Coilover Springs and spring rates from 3kg

and spring rates from 3kg (168lbs) all the way up to 34kg (1900lbs)

4 inch length

6 inch length

increased traction and handling as well as a spring with less coils

Pirelli World Challenge

Swift Springs Metric Coilover Springs 65mm ID, 7 inch length, 7 kg/mm Pair Metric Coilover Springs and spring rates from 3kg65mm ID, 7 inch length, 7 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