Hoca QMB139 Engine Gear Sets
Hoca Gear Sets in a variety of combinations for QMB139 50cc, 4-stroke engines. Choose from 16, 17 & 18 Front Tooth combinations and 41, 42 & 46 Rear Tooth combinations. Please see our Warranty & Returns Policy. ** Note: Please order carefully. This part is classified as a Performance Part is NOT RETURNABLE.