Polini Big Bore Kit; 4T Vespa Primavera, LX 50, Fly 50 & P50 Polini Big Bore Kit; 4T Vespa Primavera, LX 50, Fly 50 & P50
Polini Big Bore Kit; 4T Vespa Primavera, LX 50, Fly 50 & P50

Polini

Polini Big Bore Kit; 4T Vespa Primavera, LX 50, Fly 50 & P50

SKU 1100-1467
$308.00
Shipping calculated at checkout.
Description

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.
Product Diagrams
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  • 30-day return period
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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