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