Product Details
Description
Prima Disc Brake Pads – Genuine RH50, Yamaha Zuma 50
Specifications
- Length: 5 3/8 inWidth: 2 3/8 inHeight: 5 1/4 in
- Width: 2 3/8 inHeight: 5 1/4 in
- Height: 5 1/4 in
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.
- Fits Models / Common Applications: Genuine and Yamaha Zuma and other compatible models may apply.
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.
Common Fitment Questions
Q: Will this fit a Genuine?
A: This SKU is listed with Genuine model fitment where the scooter also matches the listed engine or fitment notes.
Additional information
| Weight | 0.3 lbs |
|---|---|
| Dimensions | 2.5 × 1 × 1 in |
Prima OEM-style replacement brake pads for Genuine Black Cat, Rattler, and RoughHouse scooters, Yamaha Zuma and other 50cc 139QMB bikes.
NOTE: These pads must be used lightly for break in followed by progressively harder braking. If a fall off in performance is experienced due to heavy braking prior to new pads being fully bedded in, it is important to let brakes cool before continuing.
Benefits:
- All-purpose pads for all types of conditions
- Powerful initial bite with thermal stability up to 1100 degrees F without fade
- Designed for a long life
- 100% compatible with OEM stainless steel rotors/disks
- Dimension A: 61.1 x 27.1 x 7.3mm
- Dimension B: 61.1 x 27.1 x 7.3mm
| Genuine Black Cat 50 (front) | Genuine Rattler 50 (front) |
| Genuine RoughHouse 50 (front, pre-2018 w/10" tires) |
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 |
Don't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle.
About Genuine: Since 2004, Genuine has fostered a dedicated community of two-wheeled enthusiasts. Genuine's singular objective has remained consistent: to provide superior scooter, motorcycle, and mobility products while delivering unrivaled customer support. Genuine has diligently pursued this aim by collaborating with world-leading manufacturers and a nationwide network of dealership experts to keep you and your two-wheeled companion on the road. Genuine OEM Parts are the original parts that came with your Genuine when you first met. Feel the love, It's Genuine!





