13 Tooth Rear Sprocket Rims Wheel Roller Chain Kit CD70 Motorcycle Stainless Steel Adapter Kart Sprocket  7 Speed 
Manufacturer of Sprocket, Chain sprockets, wheel and sprocket, drive sprocket, sprocket wheel, taper lock sprocket, gear sprocket, idle sprocket, motorcycle sprocket and stainless steel sprocket, can interchange and replace with martin size sprocket, jt size sprockets, did size chain sprocket and so on.