Cylinder Polini 177 cc aluminum race 57 for Vespa PX 125/150 all - Sprint Veloce - TS - LML Star Deluxe 125/150 / what

Description

Polini cylinder 177cc aluminum for Vespa PX 125/150 all - Sprint Veloce - TS - LML Star Deluxe 125/150. Caution: In case there is an electric starter is the cylinder necessary to slightly file on the outside in the vicinity of the flywheel, because the starter gear mounted on the flywheel interferes with the cylinder. THESE COMPONENTS ARE INTENDED FOR USE ONLY RACING-SPORTS What will your oomph Vespa PX 125/150 with aluminum Polini kit available in two displacements, with the twin spark heads and 8 fixing points! Many are the strengths of this new Polini Kit: - 63mm diameter cylinder. travaseria redesigned in order to improve the gas flows. Available with standard stroke 57mm which develops a displacement of 178cc. or decidedly more racing with discharge stroke to 60mm in order to obtain a displacement of 187 cc. For the 60 racing kit is available the anticipated crankshaft. The cylinder is air-cooled, but thanks to aluminum and to the particular design of the fins of the motor temperature remains lower. - new cast head shell and arranged to have two holes candle. The hole classic side candle as the original is the easiest for assembly or the version "Racing" with a central hole requires a small modification to headphone plastic. Another important feature relates to the mounting points: in addition to the 4 standard fixing points, the Polini head has other 4 that guarantee a greater resistance to compression. The finning is increased to obtain the best dispersion of the heat and the head gasket is manufactured in steel siliconized (not present on the original Vespa) to ensure the maximum grip during compression between head and cylinder. The kit allows to increase the power and improve the keeping constant performance over time. 140.0081 57mm stroke Code. 140.0088 race No. 60 mm. 210.0044 Code crankshaft 60mm stroke. 100% Made in Italy