FOR THE VESPA: IT’S A “HEAD” WORK FOR POLINI
Polini refreshes the famous kit for Vespa 50cc with Ø 47 – Ø50 – Ø55 bore.
The main feature is the new chilled head. It has a modern design that makes it stronger with a perfect squish and it lets place the spark plug with long thread in the center compared to the combustion chamber. The finning has been improved for a better heat dispersion and the head gasket is made of steel with silicon content that assures a perfect compression seal between head and cylinder (not available on the original Vespa).
The new kit has a better quality and improves the performance.
The head together with the gasket can be bought singularly because it can replace the head of the previous kit.