Dr. Pulley 20x12mm Sliding Roller Weights - Set of 6 for Scooters & Mopeds

Dr. Pulley 20x12mm Sliding Roller Weights for Yamaha, Kymco, and Linhai Scooters

These Dr. Pulley 20x12mm sliding roller weights are built to improve how your scooter's CVT system performs. They take the place of standard round rollers, widening the gear range and giving quicker acceleration without any changes to your variator or belt. The set includes 6 weights, so you can tune your ride to your liking. They are a strong option within scooter variators & roller weights for riders who want to upgrade performance.

Performance Benefits

The sliding shape avoids the flat spots and uneven wear that often come with round rollers. Because of this, shifting stays steady and performs consistently over thousands of miles. The design lets the variator plate work beyond OEM specifications, which raises top-end speed while keeping cruising RPMs lower.

Material and Design

These weights are made from a self-lubricating PA46 tribological composite that handles heat and friction without needing grease. The sliding design is covered by U.S. Patent 7,276,004, supporting efficient operation and long-term reliability. They come in several gram weights, so you can adjust your setup to suit your riding style and any exhaust changes you have made.

Specifications

• Material: Oilless PA46 Tribological Composite
• Size: 20mm diameter x 12mm width
• Available Weights: 8.5g, 9g, 9.5g, 10g, 10.5g, 11g, 11.5g, 12g
• Quantity: Set of 6
• Made in: Taiwan
• Fits: Yamaha, Kymco, Linhai and Trailmaster CVT scooters and go-karts listed in compatibility (see models)

Fitment

Fits:

• Yamaha Zuma 125 (all years)
• Yamaha Vino 125
• Yamaha Majesty 250
• Yamaha Morphous 250
• Yamaha SMAX 155
• Kymco Downtown 200, 300
• Kymco People GT 200, 300
• Kymco Xciting 250, 300
• Linhai 250, 260, 300
• Trailmaster 300S, 300 XRX (Go-Karts)

How to choose: Pick a gram weight from 8.5 to 12 in 0.5 g steps. Going 1-2 g lighter than stock gives better acceleration, while stock up to 1 g heavier favors top speed.

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