Hinson Clutches are championship proven by almost every major factory team and rider in the world, including Eli Tomac, Ken Roczen, Cooper Webb, Tim Gajser, Jeffrey Herlings, Jeremy Seewer, Chase Sexton, and Joey Savatgy. MotoGP developed slipper clutch technology. Fully adjustable slip range. Better braking control. Less kick back under braking (MX). Easier to slide in to corners. Simple installation - No special tools needed. Improves clutch performance and life. 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. Helps eliminate clutch chatter when used with Hinson Clutch Components clutch basket. Sold as a kit.