Fine-tune your CVT transmission for peak performance with NCY’s premium 20x15mm roller weights.

The NCY 20x15 Roller Weight Set is the most effective way to refresh and improve your scooter’s power delivery. These weights are engineered with a high-durability, low-friction polymer coating to prevent flat-spotting and ensure smooth shifting. Whether you are looking for more low-end punch for the Honda Navi or a higher top speed for the Blur 220i, these premium weights provide a balanced tuning profile.

Direct Fitment & Compatibility:

• Honda: PCX 125, PCX 150, SH 125, SH 150, Navi 110
• Genuine Scooter Co: Blur 220i
• Engine Codes: 157QMJ, 161QMK, 152QMI, 1P61QMK, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, BN161QMK-A
• Universal: Most 125cc, 150cc, and 161cc GY6 / GY6-B 4-stroke engines.

Key Performance Benefits:

• Consistent Shifting: High-tech polymer reduces friction and prevents "stepping" during acceleration.
• Maintenance Alert: Roller weights develop flat spots over time. Replace every 1,000–2,000 miles to maintain top speed and fuel efficiency.
• Symptoms of Wear: If your engine is "screaming" (high revs) but the scooter isn't moving faster, your rollers are likely worn.

Technical Specifications:

• Size: 20mm x 15mm
• Select Weight: 12g, 13g, 14g, 15g, 16g, 17g, 18 Gram options
• Quantity: Set of 6 Rollers
• Brand: NCY (ISO 9001 Certified)
• Origin: Made in Taiwan

About NCY: NCY is the aftermarket performance parts leader for the most popular scooter brands, including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6 / QMB powered scooters. Made in Taiwan with strict quality standards since 1997, NCY is ISO 9001 certified.

Made in Taiwan.

This product is intended for off-road use only.

This product is not intended for use on public roads or land.

*Performance upgrades are considered racing parts and are not covered by warranty.