Dr. Pulley 19x15.5mm sliding roller weights for Vespa & Piaggio 50cc. Set of 6. SL-9 self-lubricating nylon. Choose 5g–9.5g for your riding style. Dr. Pulley 19x15.5mm sliding roller weights for Vespa & Piaggio 50cc. Set of 6. SL-9 self-lubricating nylon. Choose 5g–9.5g for your riding style.
Dr. Pulley Slider feature sheet Dr. Pulley Slider feature sheet
Dr. Pulley 19x15.5mm sliding roller weights for Vespa & Piaggio 50cc. Set of 6. SL-9 self-lubricating nylon. Choose 5g–9.5g for your riding style.
Dr. Pulley Slider feature sheet

Dr. Pulley

Dr. Pulley 19x15.5 Sliding Roller Weights Vespa/Piaggio 50c

SKU 1200-1108 5.0G
$40.00
Shipping calculated at checkout.
Options: 5.0G
Description

Unleash Your CVT: Dr. Pulley 19x15.5 Sliding Weights

Revolutionize your scooter's performance with Dr. Pulley Sliding Weights. Unlike traditional round rollers that can flat-spot and limit your gear range, these patented "sliding" weights feature a unique aerodynamic shape that allows the variator to open wider and close further. For Vespa and Piaggio 50cc riders, this means a dual-benefit: faster "hole-shot" acceleration off the line and a noticeable increase in top-end speed.

Performance & Engineering Advantages

  • Increased Gear Range: The sliding geometry allows the belt to sit lower in the pulley at start-up and higher at top speed, effectively expanding your transmission's reach.
  • Self-Lubricating SL-9 Composite: Manufactured from a high-tech nylon material that is heat-resistant and low-friction, preventing the "flat-spotting" common in OEM rollers.
  • Precision Tuning: Available in a wide range of gram weights to perfectly match your riding style—whether you need more climbing torque or a higher cruise velocity.
  • Long-Life Durability: Dr. Pulley weights are engineered to outlast standard weights by up to 3x, maintaining consistent performance throughout their service life.

Comprehensive Fitment Guide

These 19x15.5mm weights are the definitive performance upgrade for Vespa & Piaggio 4-Stroke 50cc engines:

Brand Compatible Models
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)

Technical Specifications

  • Dimensions: 19mm x 15.5mm
  • Material: Specialized SL-9 Self-Lubricating Nylon
  • Shape: Patented Sliding Geometry
  • Weight: Choose from 5g-9.5g
  • Quantity: Set of 6 Weights
Mechanic's Note: Most 50cc riders find the "sweet spot" by going 0.5g to 1.0g lighter than their stock weights.
Installation Tip: Direction matters! Ensure the "open" side of the weight is facing the correct direction in the variator ramp to avoid damaging the sliders.
Pro Tip: For the ultimate performance combo, pair these weights with a Bando Kevlar Belt to handle the increased gear range without slipping!

SKU: 1200-1108, SR1915
Vendor: Dr. Pulley
Product Diagrams
  • 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.
Options: 5.0G
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