3 4" Bore Clutch Assembly with 10 Tooth #420 Chain Sprocket for the Massimo Warrior 200 MB200 Mini Bike Mongoose Rocket FS RS3 is Kenda's fastest rubber Options:22.2 mm mount RS3 is Kenda's fastest rubber compound and used exclusively for high end racing tires significantly lower rolling resistance and increased wet weather traction No light Battery disconnected or battery voltage less than 5 volts This 3 4" bore clutch assembly with 10 tooth #420 chain sprocket for the Massimo Warrior 200 MB200 mini bike makes a fine replacement for a worn or damaged clutch on your Massimo When you need a replacement clutch assembly with 3 4" shaft and 10 tooth 420 chain sprocket we have you covered