The clutch is delivered with medium clutch springs, which increase the engagement speed by about 1500-2000 revolutions compared to the original. This allows the engine to turn higher before it is loaded and can thereby provide more engine power for acceleration. The fibre-reinforced clutch jaws also ensure a long life and neat grip in the clutch bell. The coupling can be used for standard engines up to mid-race tuning stages. All round top choice clutch shoe assembly.