Fine-tune your scooter's CVT transmission with NCY 16x13mm Roller Weights. Available in 5g through 9g, these precision rollers let you dial in the perfect balance between low-end torque and top-end speed � and replacing worn, flat-spotted rollers restores lost performance and improves fuel efficiency.
Key Features
- Precision Tuning � 5g�9g options to find your CVT sweet spot between acceleration and top speed
- Premium Durability � low-friction polymer sleeve with metal core, ISO 9001 certified, made in Taiwan
- Performance Recovery � eliminates high-rev lag and restores top speed lost to worn factory weights
- Sold as a set
Specifications
- Dimensions: 16mm (diameter) × 13mm (width)
- Available Weights: 5g, 6g, 7g, 8g, 9g
- Material: Low-friction polymer sleeve with metal core
- Origin: Made in Taiwan
Compatibility
Fits a wide range of 50cc�80cc scooters using the 139QMB / GY6 50cc engine platform:
| Brand | Compatible Models |
|---|
| Genuine Scooter Co. | Buddy 50, RoughHouse 50, Rattler 50, Black Cat 50 |
| Honda | Ruckus 50, Metropolitan 50 (pre-2011), Elite 50, Dio (AF25, AF27, AF28) |
| Yamaha | Zuma 50 (2-stroke), Vino 50, Jog 50 |
| Chinese / Import | All 139QMB / GY6 50cc�80cc engines (TaoTao, CSC Go, etc.) |
Compatible engine codes: 139QMA, 139QMB, 1P39QMB, 1P39QMA, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, LJ139QMB, 147QMD (GY6 80cc)
Tuning Guide
- Lighter than stock � crisper acceleration, better low-end pull
- Same as stock � restored factory performance
- Heavier than stock � higher top speed with reduced acceleration
Maintenance Tip: Inspect roller weights every 1,000 miles. Flat spots or a drop in top speed are signs it's time for a fresh set.
About NCY
NCY is the premier provider of aftermarket performance components for Honda, Yamaha, Genuine, Vespa, Piaggio, SYM, Lance, KYMCO, and GY6/QMB-powered scooters. ISO 9001 certified and made in Taiwan since 1997.
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