Swift Standard Conventional Springs 13in length, 5 in OD, 175 lbs/in Barrel Type Flat Track Motorcycle Springs and spring rates from 3kg

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

Le Mans Series

and many other professional racing avenues

Round Wire Progressive Rate Bump Springs 500-1000 lbs/in

Swift Standard Conventional Springs 13in length, 5 in OD, 175 lbs/in Barrel Type Flat Track Motorcycle Springs and spring rates from 3kg13in length, 5 in OD, 175 lbs in Barrel Type Swift Standard 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,