Features a larger diameter throttle cam that requires less throttle turn to reach full throttle. Less throttle turn also means less “elbow drop”, which keeps the rider in optimum riding position. Self-lubricating Delrin bushings in each end of the throttle tubes eliminate aluminum-to-aluminum contact and provide a smooth “ball bearing” feel. Fits in your stock throttle housing, no need to cut, trim, or file. Knurled throttle tube helps prevent grip slippage. CNC- machined for a precision fit. Used by Factory Yamaha race teams.