Renthal 1230-520-50GPBK REN Rear Sprockets suspension-shocks-struts-components-shock-thrust-bearing-kits Replaces OEM #29970-88

Replaces OEM #29970-88

Track studding required

1989-1990 Kawasaki ZX750F Ninja 750R

featuring a durable 1/8'' steel plate that retains the factory tow hitch for seamless integration

2003-2018 Yamaha YZ250F

Renthal 1230-520-50GPBK REN Rear Sprockets suspension-shocks-struts-components-shock-thrust-bearing-kits Replaces OEM #29970-88Renthal 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.