Race Spec (RS) Rear Sprockets feature our revolutionary Angled Mud Groove. This exclusive design creates a self-cleaning effect during operation, shedding away mud that would otherwise lead to horsepower loss and sprocket wear. With their precise CNC machining and unique layout, these grooves also allow an increase in tooth surface area of up to 40% over competing sprockets. As a result, contact with the chain is significantly improved, leading to a marked increase in sprocket life over other brands. That's the ProTaper difference.

This Part Fits:

Year	Make	Model	Submodel
1986-2001	Suzuki	RM80	Base
2002-2009,2012,2015-2023	Suzuki	RM85	Base
2003-2008,2012	Suzuki	RM85L	Base
1993-2001	Yamaha	YZ80	Base
2002-2023	Yamaha	YZ85	Base