Dr. Pulley 20x12 Sliding Roller Weights (Set/6)

Performance Redefined: Dr. Pulley 20x12 Sliders

Transform your scooter's power delivery with Dr. Pulley Sliding Roller Weights, better known as "Sliders". Unlike traditional round weights that roll, these innovative sliders feature a unique wedge shape that slides up the variator ramps. This patented movement allows the pulley to open wider for higher top speeds and close tighter for more aggressive take-off acceleration—all while eliminating the "flat spots" that plague standard rollers.

The Dr. Pulley Advantage

• Broadened Gear Ratios: The unique geometry allows for a lower "low gear" and a higher "high gear," maximizing the potential of your 125cc–300cc engine.
• Extreme Durability: Made from a proprietary self-lubricating nylon composite, these weights are engineered to outlast standard rollers by resisting wear and heat deformation.
• Automatic Wear Compensation: U.S. Patent Number 7,276,004 ensures these weights adjust themselves as they age, maintaining consistent performance over thousands of miles.
• Black Pearl Technology: Select sizes (12g) feature the advanced Black Pearl material for even lower friction and superior thermal stability.

Comprehensive Fitment Guide

These 20x12mm weights are the performance standard for Yamaha and Linhai-based engines:

Technical Specifications

• Dimensions: 20mm x 12mm
• Quantity: Set of 6
• Material: Self-Lubricating Nylon Composite
• Available Weights: 5g through 16g (Select from menu)

Mechanic's Note: When installing Dr. Pulley Sliders, Orientation is Critical! The "winged" part of the slider must face the correct direction in the variator ramp to function.

Tuning Tip: Because sliders behave more efficiently than rollers, most tuners recommend choosing a weight 10-15% lighter than your stock round weights for the best overall performance.

SKU: 169-290
Vendor: Dr. Pulley