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
2003-2004	Kawasaki	KLX400R	Base
2003	Kawasaki	KLX400SR	Base
2001-2007	Suzuki	DR-Z250	Base
2000-2004	Suzuki	DR-Z400	Base
2000-2007	Suzuki	DR-Z400E	Base
2000-2009,2011-2023	Suzuki	DR-Z400S	Base
2005-2009,2013-2023	Suzuki	DR-Z400SM	Base
1990-1999	Suzuki	DR350	Base
1979-2007	Suzuki	RM125	Base
1986-2008	Suzuki	RM250	Base
1989-1998	Suzuki	RMX250	Base
2010-2011,2017-2019	Suzuki	RMX450Z	Base
2007-2023	Suzuki	RMZ250	Base
2005-2023	Suzuki	RMZ450	Base