Product Details
Description
Universal Parts Rear Disc Brake Caliper
Replacement Part Details
Use this part when the original component is worn, damaged, missing, or no longer working correctly. Many scooter parts can look similar but use different sizes, plugs, brackets, thread patterns, or mounting styles, so careful comparison before purchase is recommended.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Fitment Notes: Universal Fit
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Additional information
| Weight | 2.2 lbs |
|---|---|
| Dimensions | 6 × 6 × 6 in |
Universal Parts Brake Caliper for 50cc - 250cc scooters, including 139QMB and GY6 bikes. Check the specs to confirm this product fits your ride.Â
- Includes Brake Pads
- Bolt Hole Spacing: 44mm
139QMB-based 50cc / 80cc engines with the following engine codes:
| 139QMA | 139QMB | 1P39QMB | 1P39QMA-2 |
| YN139QMB | JJ1P39QMB | 139FMA-2 | BD1P39QMB |
| BN139QMB | 147QMD | Other QMA models | Other QMB models |
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 Universal Parts: Universal Parts is a line of quality and affordable replacement parts for Chinese scooters! From basic items like bearings and cables all the way up to complete engine assemblies and affordable big bore kits, the comprehensive Universal Parts line can help you get your scooter riding again.








