Sprocket Kit Yamaha YZ250FX U-Ring - GB520MXU 13/51 Category_Injector Throttle Body O-Ring Kits Heavy-duty steel cases with POM-M90

Heavy-duty steel cases with POM-M90 bearing material for long life

It’s that easy

Heavy duty tapered bearings are used for higher torque load and better wear then ball style bearings

The Alpha XA14 has a key replacement service so that if you are unfortunate enough to lose all your keys a new one can be made up

Maintains full charge

Sprocket Kit Yamaha YZ250FX U-Ring - GB520MXU 13/51 Category_Injector Throttle Body O-Ring Kits Heavy-duty steel cases with POM-M90RK chain and sprocket kits are the perfect drive maintenance kit for your bike. The perfect alternative to expensive OEM replacements, it is designed to meet and exceed OEM specifications. Supplied in presentable packaging with a carry handle for convenient transportation. Features: Includes strong and durable high carbon steel sprockets. Paired with a high quality RK chain.