High Friction clutch plate set incl. friction plates, clutch plates and clutch springs. Normally, only 4 friction plates and 3 steel discs are used in the standard clutch. In this High Friction Kit, the friction plates and steel discs were made slightly thinner, so that two additional discs can be added. This increases the friction surface by approx. 20%. There is less slippage and better coefficients of friction.