We machine these in matched pairs ourselves, and we bore them up to 63mm, big enough to fit a 63mm performance cylinder kit. Go big! Pick up a new crankcase gasket while you're at it.
Specifications
- Matched right and left sides
- Stamped serial numbers ensure you have a matched set
- Dimensions: 10"L x 10"W x 4"H
Model Fitment
157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:
| 157QMJ |
161QMK |
152QMI |
1P61QMK |
| YN1P57QMJ |
1P52FMI |
154FMI |
JJ157QMJ |
| 1P57QMJ |
BN157QMJ |
BN161QMK-A |
Other QMJ, QMK, and QMI models |
Don't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle.
About AZScooterParts: Since the beginning in 1989, AZScooterParts has become a major supplier of parts and accessories for vintage and modern scooters. We have everything you need, from wear-and-tear items like tires and oil filters to aftermarket parts from brands like Malossi, NCY, Prima, YSS, Dr. Pulley, and more.
This product is intended for off-road use only.
This product is not intended for use on public roads or land.
This product is not legal for use in California on pollution-controlled vehicles. Check local laws before installing.