Dr. Pulley
Dr. Pulley 20x17 Sliding Roller Weights - Vespa/Piaggio
Description
Dr. Pulley 20x17 Sliding Roller Weights unlock the true potential of your Vespa or Piaggio 200–300cc CVT. Unlike traditional round rollers that develop flat spots and notches over time, Dr. Pulley’s patented non-round shape slides through the variator ramps — allowing the variator to open wider for higher top speed and retract further for stronger low-end pull. Available in 9.5g–13g to match your riding style. SKU: SR2017.
Installation Note: Orientation is critical. The “blocked” side of the slider must face the direction of rotation. Inspect variator slides for wear before installing — worn guides will prevent smooth sliding action.
Key Features
- Patented sliding geometry — prevents flat spots and uneven wear common with round weights
- Extended gear range — sits lower in ramp for explosive take-offs, pushes higher for top speed
- Self-lubricating high-temp nylon composite — outlasts standard OEM rollers
- Available in 9.5g, 10g, 10.5g, 11g, 11.5g, 12g, 12.5g, 13g — select from dropdown
- Fits OEM and most aftermarket variators
Weight Selection Guide
- Lighter (9.5g – 10.5g): Better hill climbing and city acceleration; higher RPM cruising
- Mid-range (11g – 12g): Balanced daily commuting performance
- Heavier (12.5g – 13g): Higher top speed and lower RPM cruising on flat roads
Specifications
- Size: 20mm x 17mm
- Weight Options: 9.5g – 13g (6 per set)
- Quantity: 6 sliders per set
- Material: Self-lubricating low-friction nylon composite
- Made in Taiwan
- SKU: SR2017
Compatibility
| Brand / Model | Engine |
|---|---|
| Vespa Granturismo 200 | 200cc Leader |
| Vespa GTS / GTV 250 & 300 | 250cc Quasar / 300cc HPE |
| Piaggio BV 200 / 250 / 300 | Leader / Quasar / HPE |
| Aprilia Scarabeo / SportCity | 200–300cc Piaggio-based |
Visit our Shop by Diagrams page to confirm fitment for your specific model year.
Product Diagrams
Features
Specifications
Size: 20x17mm | Weight Options: 9.5g, 10g, 10.5g, 11g, 11.5g, 12g, 12.5g, 13g | Quantity: 6 per set | Material: Self-lubricating nylon composite | Origin: Taiwan | SKU: SR2017
Model Fitments
Vespa Granturismo 200, GTS/GTV 250 & 300; Piaggio BV 200, 250, 300; Aprilia Scarabeo & SportCity 200-300cc (Piaggio-based engines)
-
Same day shipping for orders placed before 2PM (CST) M-F
-
30-day return period on eligible items
-
Flat-rate shipping for orders shipped to the 48 Contiguous United States.
