Prima 20x17mm Roller Weight Set - Vespa GT/GTS/GTV 200-300

Prima 20x17mm CVT roller weights for Vespa GT, GTS, and GTV 200/250/300cc scooters and other Piaggio 125–300cc large-frame models. Black polymer outer shell with aluminum inner sleeve. Set of 6. Available in multiple gram weights — select your weight from the variant options.

The 20x17mm size is the standard roller for the Piaggio M31/M35 CVT platform used in modern Vespa and Piaggio large-frame scooters.

• Set of 6 roller weights
• Black polymer outer shell with aluminum inner sleeve
• 20x17mm — standard size for Piaggio M31/M35 large-frame CVT variators
• Lighter weights: higher RPM, better acceleration and hill climbing
• Heavier weights: lower RPM, higher top speed
• Prima

Tuning Guide

• Lighter rollers — better low-end acceleration, hill climbing, and stop-and-go riding
• Heavier rollers — higher top speed on open roads, lower cruising RPM
• Heavier rider or stock engine: lean lighter | Lighter rider or performance exhaust: lean heavier

Specifications

• Dimensions: 20mm x 17mm
• Quantity: Set of 6
• Construction: Black polymer shell, aluminum inner sleeve
• Application: Piaggio M31/M35 CVT platform, 125–300cc

Compatibility

California Prop 65 Warning: www.p65warnings.ca.gov

• Set of 6 roller weights
• Black polymer outer shell with aluminum inner sleeve
• 20x17mm — standard size for Piaggio M31/M35 large-frame CVT variators
• Lighter weights: better acceleration | Heavier weights: higher top speed

Dimensions: 20mm x 17mm | Quantity: Set of 6 | Construction: Black polymer shell, aluminum inner sleeve | Application: Piaggio M31/M35 CVT platform 125–300cc

Vespa GT 200, GTS 250/300, GTV 250/300 — Piaggio MP3 250/300, Beverly 250/300, X9 250, X10 350 — Aprilia Scarabeo 250/300 (Piaggio engine) — all Piaggio M31/M35 platform scooters with 20x17mm variator rollers