Cylinder -POLINI 63 ccm Racing Ø43mm- Piaggio Ciao, Bravo, Boxer (piston pin = Ø 12mm)

The Polini Racing is the improved version of the well-known Polini 43mm cast iron cylinder that has been on the market for years.
The racing version impresses with better timing and larger transfer ports than the normal version. The cylinder is supplied including head and the necessary mounting material.
It fits the original engine cases as well as the Polini Speedengine.

With a larger carburetor, a crankshaft with modified timing
and a different exhaust, every last bit of the kit can be teased out.