Used by most major factory teams and riders. Improves clutch performance and life as well as heat dissipation. Precision-machined from billet T-6 aircraft quality aluminum to aerospace tolerances and akadized for 5x the wear resistance to stock, with proper maintenance. Allows clutch assembly to spin more true creating less heat when clutch is disengaged and providing a more positive, smooth clutch engagement. Kit includes basket, inner hub, pressure plate, friction steel plates and springs, cushions and clutch cover included as needed.