Fit GY6 150cc 152QMI 157QMJ Engine Include Rear Clutch Assembly Front Clutch Assembly Gates 743 20 30 Belt Rear Clutch Size Bell OD:136mm;ID:125mm Splines: 19 tooth Front Clutch Assembly Size: Drive face hole diameter 15mm diameter 115 mm For your quick use of new accessories, please consult the picture information and product description before purchasing Product description Clutch Assembly Set Fit GY6 150cc scooter 152QMI 157QMJ Engine Go Kart ATV Quad with Gates 743 20 30 belt