Everything you need to upgrade your clutch plates and springs. Exact O.E.M. tolerances and specifications. Springs are 8-10% stiffer than stock to ensure a positive clutch lock-up.
Note:
CRF450R 02-16 Six spring kit must be used with Wiseco Inner Clutch Hub P/N 162146 and Wiseco Pressure Plate P/N 162148 for 09-12 models
