... belt scooter parts 3.model :669*18*28 743*20*30 729 842 etc. 4.GY6 engine belt Feactures: 1) With ... heat,oil,fatigue,again and friction.2) Features:large power ,high speeds,long usage lives,small distortion,small sizes.3) Applications ... available. scooter belt / gates belts/ scooter belt / spare parts/ accessory / high quality belt / china scooter belt (ZW-E04)