Once again, the transalpine brand surprises us with one of its products developed to improve the performance of our motorcycle. On this occasion we are talking about the Polini Evolution 3 kit for Vespa, designed specifically for track racing in the 135cc Vespa Classic category.
The strong point of the new Polini Evolution 3 kit is the possibility of mounting it on the original Vespa crankcases, avoiding the need for the crankcase fairing. Furthermore, a special feature of this cylinder is that it is designed to operate both in the original position and in the classic rotated version, often used in circuit racing. Thus:
- This position facilitates the development and assembly of the silencer.
- The engine gains more power at any speed
He Polini Evolution 3 kit for Vespa, with rotary valve intake, fits all types of Vespa 125 with the same crankshaft size as the original. In addition, there is also a Polini crankshaft (code 210.0033) with a one-piece connecting rod, advanced and balanced to be mounted while maintaining the original stroke of 51 mm.
Technical characteristics of the Polini Evolution 3 kit for Vespa
- The cylinder is made of cast aluminum, with an internal diameter of 58 mm for a displacement of 135 cc.
- Nickel-silica coated cylinder improves piston sliding, wear and abrasion resistance.
- Very “racing” distribution diagram. Six transfer ports.
- The forged piston has two chrome-plated S10 cast rings. The cylinder head is cast in one piece and, to increase heat dissipation, additional fins have also been created under the top of the cylinder head. The compression ratio has been designed for maximum performance.
With a final price of 408 euros + VAT, The new Polini Evolution 3 kit for Vespa is of course “made in Italy”. The reference code is the 140.0234 and for more information you can consult directly on the official website of the transalpine firm.
