This Polini Maxi Hi-Speed 9-roller variator kit is designed to give compatible Vespa and Royal Alloy scooters stronger acceleration, smoother takeoffs and greater top-speed potential. Nine rollers distribute thrust more evenly than a common six-roller setup, helping reduce shudder on takeoff. Two integrated O-rings lubricate the sliding liner to help reduce friction, while the larger pulley and included 9.2 g rollers let you tune shift behavior to your engine and transmission.
Features
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Smoother takeoffs: The nine-roller layout spreads thrust evenly to help reduce start-up shudder.
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Lower sliding friction: Two integrated O-rings help keep the liner lubricated.
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Acceleration and speed potential: The larger pulley is designed to improve performance when roller weights are correctly matched.
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Ready-to-tune setup: Includes nine 20 × 12 mm rollers weighing 9.2 g each, plus the variator, ramp plate, slides and boss.
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Made in Italy: Polini Maxi Hi-Speed performance design.
Specifications
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Part number: 1200-1221
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Polini reference: 241.665
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Alternate listing number: 146-27
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Roller weights: Nine, 20 × 12 mm, 9.2 g each
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Variator outer diameter: 121 mm
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Center bore: 17 mm
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Spline count: 22
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Country of origin: Italy
Model Fitment
- Vespa GT60 (2007)
- Vespa GT, GT L, GTS, GTS Super and GTV models using compatible 200–310 cc Piaggio Leader, Quasar or HPE engines
- Vespa GTS250ie (2006–2009) and GTS250ie Super (2009)
- Vespa GTS300 (2010–2014), GTS300 Super (2010–2014), GTS300 ABS Super and GTV250
- Piaggio MP3 250/300 and X9 250 Evolution applications
- Royal Alloy GP300S
For Royal Alloy GP300S installation, retain the original shim/spacer between the drive boss and fixed pulley cheek. Follow the Polini technical schematic to maintain belt alignment and crankshaft spacing. Before ordering, confirm your model and engine family, and check that the original variator has a 22-spline interface and 17 mm bore.
This product is intended for off-road use only. This product is not intended for use on public roads or land. Not legal for use in California on pollution-controlled vehicles. Check local laws before installing.
