Dr. Pulley 15x12 Sliding Roller Weights:1PE40QMB Minarelli
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Next-Gen CVT Tuning: Dr. Pulley 15x12mm Sliding Weights
Standard roller weights rely on a rolling motion that eventually creates "flat spots," leading to sluggish acceleration and reduced top speeds. Dr. Pulley Sliding Weights utilize a patented wedge-shaped design that slides up and down the variator ramps. This unique movement allows the weights to travel further than traditional rollers, effectively broadening your gear ratio for a "best of both worlds" performance boost.
Performance Advantages
- Patented Sliding Technology: Eliminates the abnormal wear and flat-spotting common in round weights, significantly extending service life.
- Broadened Gear Ratio: Achieves a lower "first gear" for explosive takeoffs and a taller "overdrive" for increased top-end speed.
- Enhanced Re-Acceleration: Dramatically improves throttle response when exiting corners or navigating traffic.
- Self-Lubricating Material: Composed of a high-tech, low-friction polymer that reduces heat and wear on your variator ramps.
Technical Specifications
- Size: 15mm (Diameter) x 12mm (Width)
-
Weight: Choose from 3g to 10g
- Quantity: Set of 6
- Manufacturer: Dr. Pulley
- Original Parts For Scooters SKU 169-216
Full Fitment List (15x12mm)
These weights are designed for Yamaha-based 50cc horizontal/vertical 2-stroke engines (Minarelli). They do NOT fit Genuine Buddy/Roughhouse models.
| Brand | Compatible Models (50cc 2-Stroke) |
|---|---|
| Yamaha | Jog (1988-2001), Zuma (2002-2011), Vino, C3, Aerox, Axis, Breeze, Neo's |
| Aprilia | SR 50 (Minarelli engine), Gulliver, Rally, Scarabeo, Sonic |
| Adly | Fox 50, Hammerhead 50, Noble 50, Thunderbike 50, Panther 50 |
| Malaguti | F10, F12 Phantom, F15 Firefox, Centro, Ciak |
| Benelli | 491 GT/RR, K2, Pepe, Naked 50 |
| CPI / Keeway | Hussar, Popcorn, F-Act, Hurricane, Matrix, RY8 |
| Beta | Ark, Chrono, Quadra, Tempo |
| Italjet | Dragster 50, Bazooka, Pista, Scoop, Reporter |
Common Engine Codes: 1PE40QMB, Minarelli Horizontal/Vertical, Yamaha A124E, and various Chinese 2-stroke clones.
Critical Installation Note: Orientation matters! Sliding weights must be installed in a specific direction. Ensure the side with the Dr. Pulley logo and the "stepped" edge is positioned according to the included diagram.
Tech Tip: For most 50cc Minarelli engines, a weight between 4.5g and 6.0g is the "sweet spot" for balancing acceleration and top speed.
Original Parts For Scooters SKU 169-216
About Dr. Pulley: Dr. Pulley is the world's leading authority for aftermarket performance CVT parts for all popular powersports vehicles, including Polaris, BRP, Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6 / QMB powered scooters. Made in Taiwan with strict quality standards since 1987, Dr. Pulley is ISO 9001 certified.
Shipping information
Use this text to share information about your product.
Returns & warranty
Use this text to share information about your product.