Billet snubber cnc machined to tight tolerances that replaces the rubber stock snubber.Made from Uhmw material. Rests between the stock motor plate and gear case and holds the center to center between the clutches- stopping the motor from moving towards the driven under acceleration. This snubber will fit all Crossfires to date. For optimum performance we suggest using this product with the Hard mounts #125CFHM offered on our site for the Crossfires. Note: Isolating the motor with rigid mounts may increase handle bar vibrations