Bando Brand Premium CVT Drive Belt size 842-20-30 for 125 and 150cc GY6 based 4 stroke engines. Commonly found on a variety of motorized CVT applications including street-legal scooters and go-karts. fits Vento Phantom R3 (150cc) '03 and Vento Phantom R4i (150cc) '04-'06. Length: 842mm Top Width: 20mm Groove Angle: 30° Made in Japan