Precision-tune your CVT transmission with NCY 18x14mm Roller Weights. Designed for riders who want to customize their scooter's power delivery, these high-quality weights allow you to dial in quicker acceleration or a higher top speed to match your specific riding style.

Over time, stock rollers develop "flat spots" that lead to sluggish performance and decreased fuel efficiency. Replacing them with NCY rollers restores smooth shifting and provides a significant performance boost for the Genuine Buddy series and 150cc GY6 engines.

Performance Tuning Guide

• Lighter Weights (8g - 11g): Increases RPMs for faster take-off, better hill climbing, and "zippy" city riding.
• Heavier Weights (12g - 13g): Lowers cruising RPMs for better fuel economy and potentially higher top speeds on flat roads.
• Maintenance: Rollers should be inspected every 1,000 miles for flat spots to maintain peak performance.

Technical Specifications

• Dimensions: 18mm x 14mm
• Quantity: Set of 6 Rollers
• Material: Durable, low-friction composite coating

Installation Tip: To create a "half-gram" setting (e.g., 10.5g), you can alternate three 10g weights and three 11g weights in the variator. Important: Always install weights in an alternating 120-degree pattern to prevent severe engine vibration or damage.

Detailed Model Fitment