Yana Shiki CK96-078 Performance Series Clutch Kit for Suzuki GSXR 600 K1/K2/K3/ZK3/K4/K5 Fits: GSXR 600 K1/K2/K3/ZK3/K4/K5 Complete clutch kit contains friction discs, separator plates and springs Fibers are made of paper friction material Plates are made of SPCC and are 3 mm thick Tension strength of the springs approximately 10 percent stronger than OE