Dr. Pulley
Dr. Pulley 20x17 Sliding Roller Weights: Vespa & Piaggio 200
Description
Dr. Pulley 20x17 Sliders
Unlock the true potential of your transmission with Dr. Pulley Sliding Roller Weights. Unlike traditional round rollers that can develop flat spots and "notches" over time, Dr. Pulley’s patented non-round shape slides through the variator ramps. This unique movement allows the variator to open wider for increased top speed and retract further for better low-end acceleration, effectively broadening your scooter's gear range without changing your belt or variator.
Technical Performance Features
- Patented Sliding Geometry: Specifically engineered to prevent the uneven wear common with round weights, ensuring a consistent and "flat-spot free" performance for the life of the product.
- Extended Gear Range: The specialized shape allows the weights to sit lower in the ramp for explosive take-offs and push higher at the top end for higher cruising speeds.
- High-Temperature Composite: Manufactured from a unique self-lubricating nylon material that resists heat and friction, significantly outlasting standard OEM rollers.
- Precision Tuning: Available in various gram weights (from 9.5g to 13g) to help you customize your scooter's power delivery to match your riding style or exhaust setup.
Comprehensive Fitment Guide
These 20x17mm weights are a direct performance upgrade for Vespa and Piaggio 200cc–300cc engines:
| Brand / Model | Engine Family |
|---|---|
| Vespa Granturismo 200 | 200cc Leader Engine |
| Vespa GTS / GTV 250 & 300 | 250cc Quasar / 300cc HPE |
| Piaggio BV 200 / 250 / 300 | Leader / Quasar / HPE Engines |
| Aprilia Scarabeo / SportCity | 200cc–300cc Piaggio-based Engines |
Technical Specifications
- Size: 20mm x 17mm
-
Weight: Choose 9.5g, 10g, 10.5g, 11g, 11.5g, 12g, 12.5g, 13g
- Quantity: Set of 6 Weights
- Material: Self-Lubricating Low-Friction Polymer
- Compatibility: Fits Original (OEM) and most Aftermarket Variators
Installation Warning: Orientation is critical for Dr. Pulley sliders. Unlike round rollers, these MUST be installed in a specific direction; the "blocked" side of the slider must face the direction of rotation.
Tuning Tip: If you are looking for better hill climbing and city zip, choose a weight roughly 10% lighter than your stock rollers.
Pro Tip: This is the ideal time to inspect your Variator Slides—worn guides will prevent these weights from sliding smoothly!
SKU: SR2017
Vendor: Dr. Pulley