Renthal Twinring motocross rear sprocket was developed as the ultimate dirt bike rear sprocket for those looking to ride more and work less. The unique, dual-material design combines a hardened steel outer chain ring that is heated to 200degreeC before being permanently fitted to our Ultralight aluminum inner, creating a permanent bond for the life of the sprocket.

This Part Fits:

Year Make Model Submodel 2001-2021 Yamaha WR250F Base 1999-2000 Yamaha WR400F Base 2001-2002 Yamaha WR426F Base 2003-2021 Yamaha WR450F Base 1999-2021 Yamaha YZ125 Base 1999-2021 Yamaha YZ250 Base 2001-2021 Yamaha YZ250F Base 2015-2021 Yamaha YZ250FX Base 2016-2021 Yamaha YZ250X Base 1999 Yamaha YZ400F Base 2000-2002 Yamaha YZ426F Base 2003-2021 Yamaha YZ450F Base 2016-2021 Yamaha YZ450FX Base