Polini Big Bore Kit; 4T Vespa Primavera, LX 50, Fly 50 & P50
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Polini big bore kit for four valve, 4T, 49cc Piaggio engines including modern Vespa LX 50, Primavera 50, Fly 50, and the P50 Scootcoupe vehicles. This kit increases the displacement to 78.8cc! Specifications: Aluminum alloy cylinder Displacement increase: 78.8cc Compression ratio: 11.6:1 Gear up ratio: 14:43, 60% increase over stock 11:54 Includes everything in the photo Compatibility: Vespa LX 50 (2006-2009) - 4-Stroke 2-Valve Vespa LX 50 (2010-2014) - 4-Stroke 4-Valve Vespa S 50 (2009-2014) - 4-Stroke 4-Valve Vespa Primavera 50 4V Carb (2015-2019) Vespa Sprint 50 4V Carb (2015-2019) Scootcoupe P50 About Polini: For over 50 years, Polini has stood unparalleled in the racing and tuning scene. Polini has powered both off-road and road racing legends to multiple MXGP and MotoGP world championships including the legendary Valentino Rossi. Polini sets the standard for high-end tuning and top-quality performance components.
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