GY6 150cc 157QMJ Chinese Scooter Performance Racing Front Clutch Variator Brand new aftermarket replacement parts. Easy installation, Adopted high quality materials that meet or exceed original requirements. Stable characteristics, high reliability, long service life. Specification: Roller Weight: 6 pieces, 18mm x14mm, 13g Inner Diameter (drive face): 13.6mm Outer Diameter (drive face): 115 mm Material: Metal Color:silver Compatibly for GY6 Scooter Roller 150cc 157QMJ This part will fit most makes and models of Chinese Scooters, Mopeds, ATV’s & Karts with 125cc-150cc 4 Stroke GY6 Based QMJ/QMI157, QMJ/QMI152 engines Package Included: 1 set of Clutch Variator Please check the picture before you buy. It includes all of parts in the picture.