Polini Performance CVT Drive Belt – Yamaha Zuma 125 / BWS 125

Upgrade your scooter's transmission with the Polini Performance CVT Drive Belt, engineered to deliver superior durability, smooth power transfer, and dependable performance under both daily riding and high-performance conditions. Constructed from premium heat-resistant rubber compounds with high-strength aramid fiber reinforcement, this belt is designed to withstand higher operating temperatures and increased engine loads while reducing belt slip and premature wear.

Whether you're replacing a worn OEM belt or building a performance-oriented CVT transmission, the Polini belt provides crisp throttle response, consistent acceleration, and long service life. For maximum performance, Polini recommends pairing this belt with a Polini Hi-Speed Variator to fully optimize acceleration, belt grip, and top-end speed.

Key Features

• Genuine Polini high-performance CVT drive belt
• Premium heat-resistant rubber construction
• Reinforced with high-strength aramid fiber cords for exceptional durability
• Provides smooth, efficient power transfer
• Reduces belt slip during hard acceleration
• Designed for improved reliability and extended service life
• Excellent choice for both stock and modified engines
• Direct OEM-style replacement with no modifications required

Specifications

• Brand: Polini
• Length: 810mm
• Top Width: 21.8mm
• Belt Angle: 28°
• Construction: High-temperature rubber with aramid fiber reinforcement
• Installation: Direct replacement

Confirmed Vehicle Compatibility

• Yamaha Zuma 125 (2009–Current)
• Yamaha BWS 125 (International equivalent model)

Additional Compatibility

This belt is designed specifically for the Yamaha 125cc CVT platform. Some international Yamaha BWS 125 variants and certain regional Yamaha XC125 models may also use this belt. However, Yamaha has used different CVT configurations in various markets and model years.

Always compare your original belt dimensions or OEM part number before ordering.

Will Not Fit

• Yamaha Zuma 50 (2-stroke or 4-stroke)
• Yamaha Vino 125
• Yamaha SMAX 155
• Yamaha NMAX 125 / 155
• Yamaha XMAX models
• Yamaha Majesty models
• Any scooter requiring a different belt length or width

Why Replace Your Drive Belt?

A worn or stretched CVT belt can cause:

• Slower acceleration
• Reduced top speed
• Belt slipping
• Poor throttle response
• Increased transmission wear
• Reduced fuel efficiency

Replacing your belt with a genuine Polini Performance Belt restores efficient power delivery while providing increased durability for both everyday commuting and spirited riding.

Installation Tips

• Inspect the variator and clutch pulley faces for grooves or excessive wear before installing a new belt.
• Replace worn rollers or sliders at the same time for optimum CVT performance.
• Install the belt in the correct direction if directional arrows are present.
• Allow a short break-in period before aggressive riding.
• For the best results, pair this belt with a Polini Hi-Speed Variator and fresh variator rollers.

Important Note

To ensure proper fitment, always verify your scooter's original belt size and OEM part number before purchasing. While this belt fits the Yamaha Zuma 125 and Yamaha BWS 125, some regional models and production years may use different belt specifications. Matching the original dimensions is the best way to guarantee compatibility and avoid installation issues.