Yana Shiki CK96-093 Performance Series Clutch Kit for Yamaha YZF R1 LE and YZF R1 Fits: Yamaha YZF R1 LE and YZF R1 (6 piston caliper) 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