Big bore cylinder kit Diameter 47 mm 50cc to 75 CC Piaggio Polini Ape Vespa 50 1400053 Motorcycle Cylinder block High Quality

POLINI 140.0053

Diameter: 47.0
Stroke: 43.0
Power: 7.7 hp / 7700 rpm
Long pitch spark plug.


This Polini cast iron cylinder with 47mm diameter piston with a displacement of 75cc is interchangeable with the original one mounted on Vespa 50 N - 50 L (Luxury) - 50 R (Renewed) - 50 Special - 50 Revival - 50 PK - 50 PK S - 50 PK XL and APE 50.

The substantial difference with the original one is that this cylinder has been revised in the transfer ports in order to have a little more sparkle to the Vespa, developing a power of approximately 7.5hp.

The Vespa 50 and the Ape 50 are originally fitted with a 43mm stroke crankshaft and this engine kit can be installed without replacing the crankshaft.

The kit is supplied with head and gaskets, ready for assembly and does not require special technical knowledge to be assembled and easily adapts to all Vespa without the need for specific processing.

The performance of this cylinder kit can be enhanced even more by replacing the original crankshaft (which can be fine) with an earlier one.

The technical characteristics of this cylinder are a considerable torque and reduced consumption.

The processes that Polini technicians have done on this cylinder can be summarized in an exceptional sturdiness, guaranteeing superior performance in all operating conditions.