Dr. Pulley 19x15.5mm Sliding Roller Weights - Set of 6 for Scooters & Mopeds

Dr. Pulley Sliding Roller Weights for Vespa, Piaggio, and Aprilia Scooters

These Dr. Pulley 19x15.5mm sliding roller weights are built for a range of 50cc scooters, including models from Vespa, Piaggio, and Aprilia. They work on the variator to widen the usable gear ratio, which can give you faster pickup and a higher top speed. You can find more options in our range of scooter variators and roller weights.

Performance Benefits

The sliding design is patented and lets the variator work more efficiently than standard round rollers. The belt sits lower when you start off and rides higher at full speed, which helps acceleration and overall running. The self-lubricating nylon composite reduces friction and heat, so the weights run smoothly without grease.

Construction and Quality

These roller weights are made in Taiwan and carry ISO 9001 certification. The material handles heat well and resists flat-spotting, which supports a longer service life. Weights are available from 5g to 9.5g, so you can tune them to your riding preferences and setup.

Specifications

• Material: SL-9 self-lubricating nylon composite
• Size: 19mm x 15.5mm
• Available Weights: 5g, 5.5g, 6g, 6.5g, 7g, 7.5g, 8g, 8.5g, 9g, 9.5g
• Quantity: Set of 6
• Fits: Vespa, Piaggio and Aprilia 4-stroke 50cc scooters (Primavera, Sprint, LX, S, ET2 2T, Liberty, Fly, Typhoon)

Fitment

Compatible with:

• Vespa Primavera 50
• Vespa Sprint 50
• Vespa LX 50
• Vespa S 50
• Vespa ET2 (2T)
• Piaggio Liberty 50
• Piaggio Fly 50
• Piaggio Typhoon 50
• Piaggio LT 50
• Aprilia SR50 Motard
• Aprilia Scarabeo 50 (4T)

How to choose: Pick a weight between 5g and 9.5g, in 0.5g increments, based on how you ride: lighter weights favor quicker acceleration, while heavier weights favor higher top speed.

Shop more: Scooter Variators & Roller Weights · Scooter Parts