Dr. Pulley Sliding Weights (15x12): 1PE40QMB Minarelli 2T

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.

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.

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