Hinson has earned a reputation as a leader in motorcycle and ATV racing because of their ability to build parts that are stronger than stock and work better than stock. Their inner hub is a case in point. The Hinson Inner Hub is manufactured from T-6 billet aluminum for maximum strength. Hinson Inner hub is built to be more rugged and stronger than a motorcycle's stock inner hub. Hinson Inner Hub provides a more positive clutch feel for maximum control and performance. Used by all major factory teams and riders. 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.