140.0081 - Polini 177 cc aluminum cylinder stroke 57 for Vespa PX 125/150 all - Sprint Veloce - TS - LML Star Deluxe 125/150 / Cosa

Description

Cylinder Polini 177cc aluminum for Vespa PX 125/150 all - Sprint Veloce - TS - LML Star Deluxe 125/150.

Warning: If electric starting is provided, it is necessary to slightly file the cylinder on the outside near the flywheel, because the starter ring mounted on the flywheel interferes with the cylinder.

THESE COMPONENTS ARE INTENDED FOR COMPETITIVE-SPORTS USE ONLY

What grit your Vespa PX 125/150 will have with the kit Polini in aluminum available in two
displacements, with double spark plug head and 8 fixing points!
Many strengths of this new kit Polini:
- 63mm diameter cylinder. redesigned in the racking to improve the flows of the
gas. Available with standard 57mm stroke which develops a displacement of
178cc. or decidedly more racing with stroke increased to 60mm to obtain
a displacement of 187 cc. The crankshaft is available for the stroke 60 kit
anticipated. The cylinder is air-cooled but thanks to aluminum and al
particular design of the fins the engine temperature remains lower.
- new head cast in shell and designed to have two candle holes. The hole
classic lateral candle like the original is the easiest for assembly
or the "Racing" version with central hole needs a small modification
to the plastic of the headset.
Another important feature concerns the fixing points: in addition to the 4 fixing points
standard, the head Polini it has 4 others which guarantee greater resistance to
compression. The finning is increased to have the best heat dispersion e
the head gasket is made of siliconized steel (not present on the Vespa
original) to ensure maximum sealing during compression between head and
cylinder.

The kit allows you to increase power and improve performance by maintaining them
constant over time.

Code 140.0081 stroke 57mm.
Code 140.0088 stroke 60 mm.

Code 210.0044 crankshaft 60mm stroke.

100% Made in Italy