14 Tooth SPROCKET / Fits Chain # 420 / for China made 50cc 70cc 90cc 100cc 110cc 125cc ATV QUAD DIRT POCKET BIKE CHOPPER GO-KART 4-Stroke Engine 14 Tooth SPROCKET / Fits Chain # 420 / for Chinese made 50cc 70cc 90cc 100cc 110cc 125cc ATV QUAD DIRT POCKET BIKE CHOPPER GO-KART 4-Stroke Engine