Fits the following bikes:

Kawasaki  KX450F 2006-2011

Improves clutch performance and life. Improves heat dissipation. Precision machined from billet T-6 aircraft quality aluminum to aerospace tolerances, and Akadized for five times the wear resistance to stock* (*with proper maintenance). Allows clutch assembly to spin more true creating less heat when clutch is disengaged. When used with Hinson Clutch Components pressure plate and inner hub helps eliminate clutch chatter.