Dr. Pulley 19x15.5mm Sliding Roller Weights - Set of 6

Dr. Pulley 19x15.5mm sliding roller weights for Vespa, Piaggio, and Aprilia 4-stroke 50cc scooters. The patented sliding shape allows the variator to open wider and close further than standard round rollers — delivering faster acceleration off the line and a higher top-end speed. Available in 5g through 9.5g to match your riding style and modifications. Sold as a set of 6.

Key Features:

• Broader gear ratio: Belt sits lower at start-up and higher at top speed than OEM rollers allow
• SL-9 self-lubricating nylon composite: Heat-resistant, low-friction, eliminates flat-spotting — no grease required
• Wide weight range: Available in 5g–9.5g (0.5g increments) to tune acceleration vs. top speed
• ISO 9001 certified | Made in Taiwan

Specifications:

• Brand: Dr. Pulley
• SKU: 1200-1108
• Dimensions: 19mm x 15.5mm
• Material: SL-9 self-lubricating nylon composite
• Available Weights: 5g, 5.5g, 6g, 6.5g, 7g, 7.5g, 8g, 8.5g, 9g, 9.5g
• Quantity: Set of 6
• Made in Taiwan

Compatibility:

• Patented sliding geometry extends variator range beyond OEM for broader effective gear ratios
• Faster off-the-line acceleration and higher top-speed ratio vs. standard round rollers
• SL-9 self-lubricating nylon composite — heat-resistant, low-friction, no grease required
• Available in 5g–9.5g in 0.5g increments for precise CVT tuning
• Set of 6 | ISO 9001 certified | Made in Taiwan by Dr. Pulley

Brand: Dr. Pulley | SKU: 1200-1108 | Dimensions: 19mm x 15.5mm | Material: SL-9 self-lubricating nylon | Available Weights: 5g–9.5g (0.5g increments) | Qty: Set of 6 | Origin: Taiwan

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