... China (CN). Our Motorcycle Aluminum Sprockets including: Motorcycle Alumiunm Sprockets, ATV Aluminum Sprockets, Scooter Aluminum Sprocket and Motorcycle Front Sprockets ... , Motorcycle Rear Sprockets; They are fitting with all of the model motorcycle chains ... , 05MB, 05MC, 06MC etc. High Qulity Alloy Aluminum (7075 T6) Produced!