MotoGP-developed slipper clutch technology Fully adjustable slip range Better braking control Less kickback under braking Easier to slide into corners Improve clutch performance and life Precision-machined from billet T6 aircraft-quality aluminum to aerospace tolerances AkadizedÖ for five times the wear-resistance over stock Allows clutch assembly to spin more true, creating less heat when clutch is disengaged Simple installation; no special tools needed Made in the U.S.A.. CLUTCH,BTL 06 KX450F