GY6-50 Drive pulley features, 1, GY6 drive pulley assy. 2, Enlarge the torch,speed up fastly 3, Long service life GY6 50 drive pulley assy This is for GY6-50 use, it has the features of wearable outer coating, long service life, enlarge the torch and speed up fastly. GY6 engine parts, Scooter engine parts, GY6 drive pulley assy