DP Brakes Clutch Kit W/ Steel Friction Plates DPSK231F F/ Yam YZF-R1 YZFR1 99-03 Get all the performance without all the fade or slip Clutch springs are shot-peened for maximum life, heat-treated and precision-wound using only the finest chrome silicon Kits available with or without steel friction plates Both styles of clutch kit include friction plates and springs (unless noted in chart)