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