Dr. Pulley 16x13 Sliding Roller Weights

Revolutionary Performance: Dr. Pulley 16x13 Sliding Roller Weights

Eliminate flat spots and unlock a broader power band with Dr. Pulley Sliding Roller Weights. Traditional round weights rely on a rolling motion that can lead to uneven wear and "flat-spotting," which kills your acceleration. Dr. Pulley’s patented sliding design allows the weights to move further out in the variator ramps, effectively extending your gear ratio. This results in faster take-offs and a higher top-end speed—all while lasting significantly longer than standard nylon rollers.

The Sliding Advantage

• Patented Sliding Movement: Unlike round weights, these "sliders" shift the gear ratio more efficiently, providing a smoother transition through the power band without abnormal wear.
• Enhanced Gear Ratio: The unique shape allows the variator to open further and close more tightly, giving you better low-end "snap" and increased top-end velocity.
• U.S. Patent Protection: Features the award-winning design (Patent #7,276,004) trusted by professional tuners and racing teams worldwide.

Comprehensive Fitment Guide

These 16x13mm weights are the standard tuning size for most 50cc 4-Stroke and 2-Stroke scooter engines:

Technical Specifications

• Size: 16mm x 13mm
• Quantity: Set of 6 Weights
• Weight Range: Available from 3g to 11g (including half-grams)
• Material: Self-Lubricating SL-Compound / Black Pearl

Tuning Note: Weight selection is key!  Lighter weights (3g-5g) provide faster acceleration and better hill climbing, while heavier weights (7g-10g) lower your RPMs for better fuel economy and top speed.

Installation Tip: Because these are directional, ensure the "Dr. Pulley" logo faces the correct direction inside the variator. Pro Tip: Pair these with an NCY Performance Variator for the ultimate 50cc transmission setup!

SKU: 169-217
Vendor: Dr. Pulley

Honda Dio, Honda Elite 50, Honda Ruckus 50 (NPS50), QMB139 50cc/49cc