NCY Big Brake Kit (4-Piston Caliper); Yamaha Zuma 125
NCY Big Brake Kit (4-Piston Caliper); Yamaha Zuma 125
$426.50
Out of stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.
Product Details
Description
NCY Big Brake Kit (4-Piston Caliper); Yamaha Zuma 125 is a replacement piston assembly for compatible 139QMB scooter engine repairs or rebuilds.
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.
- Engine Code: 139QMB
- Fits Models / Common Applications: 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 139QMB engine?
A: This SKU is listed as compatible with 139QMB engine-code fitment. Always compare your original part and scooter details before ordering.
Q: Will this fit a Yamaha?
A: This SKU is listed with Yamaha model fitment where the scooter also matches the listed engine or fitment notes.
Additional information
| Weight | 8 lbs |
|---|---|
| Dimensions | 1 × 1 × 1 in |
The NCY Big Brake Kit for the Yamaha Zuma 125 upgrades your stock braking system to a 260mm rotor paired with NCY's proven 4-piston caliper — the same caliper used in their widely popular Honda Ruckus slammed kit. The result is a dramatic improvement in stopping power, feel, and fade resistance, along with a visually aggressive look that sets your Zuma apart at a standstill or in motion.
The oversized 260mm rotor dramatically increases the braking surface area over the stock setup, giving the 4-piston caliper more leverage to shed speed quickly and consistently. Whether you're navigating stop-and-go urban traffic or pushing the scooter harder on open roads, the upgrade delivers confident, progressive braking with reduced lever effort.
- 260mm big brake rotor upgrade for Yamaha Zuma 125
- NCY 4-piston caliper — same unit used in the NCY Ruckus slammed kit
- Significant increase in braking surface area over stock
- Improved stopping power, modulation, and fade resistance
- Aggressive, performance-oriented appearance
- Direct fitment for Yamaha Zuma 125
