Polini Primary Transmission 17-45 Vespa LX / Sprint / Primavera 125 4-stroke

Polini is one of the big names in 50cc scooter tuning, and is also one of the leading manufacturers of tuning parts for Vespa, modern and vintage. Cylinders, intake manifolds, exhausts, air filters, carburetors, crankshafts and more - everything you need to boost the performance of your Vespa.

This Polini Primary Transmission with straight teeth for 4-stroke Piaggio / Vespa engines will change the gear ratio of your transmission so the surplus power of a tuned engine can be adequately handled and transmitted, be it in terms of top speed of acceleration. The quality of the gears is, as per usual with Polini, outstanding - precisely machined and very robust.

• Gear ratio: 17/45 (2.65)