clutch spring kit for Polini Speed ??Clutch 2G EVO2, 2 pair 245.075

Tuned Motors develop their power only at higher engine speeds, and the engine loses power in the lower speed range, which leads to poor drive. You can get past this loss of grunt by using the Polini clutch springs from the 2G Evo clutch system. 2 sets of clutch springs are delivered. The colors relate to the respective hardness.