NCY 18x14mm Roller Weights | GY6 Genuine Buddy Kymco SYM
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Precision-tune your CVT with NCY 18x14mm roller weights. Available in 8g–13g to dial in quicker acceleration or higher top speed. Set of 6. Replaces flat-spotted stock rollers to restore smooth shifting and peak performance on GY6 150cc engines, Genuine Buddy series, Kymco, SYM, and Lance scooters.
Tuning guide:
- Lighter (8g–11g): higher RPMs, faster take-off, better hill climbing — ideal for city riding
- Heavier (12g–13g): lower cruising RPMs, better fuel economy, higher top speed on flat roads
- To create a half-gram setting (e.g., 10.5g), alternate three 10g and three 11g weights in the variator
- Always install in an alternating 120° pattern to prevent vibration or damage
- Inspect every 1,000 miles for flat spots
Specifications:
- Dimensions: 18mm x 14mm
- Quantity: set of 6
- Material: low-friction composite
- Available weights: 8g, 9g, 10g, 11g, 12g, 13g
- Weight per set: 0.15 lbs
Compatible Models:
- Genuine: Buddy 125, Buddy 150, Buddy 170i, Blur 150, Blur 220i, Hooligan 170i
- GY6 engines: 152QMI, 157QMJ, 1P52FMI, 1P57QMJ, JJ157QMJ, BN157QMJ and most 150cc GY6 clones
- Kymco: Agility 125/150, People 125/150, Movie 125/150, Super 8 125/150
- SYM / Lance: Fiddle II/III, Symply, Orbit, Cali Classic, Havana Classic, PCH 125/150
- Chinese brands: BMS, Roketa, TaoTao, Wolf, Ice Bear, and most 150cc GY6 clones
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.