Cylinder -POLINI cast iron 85 cc Sport- Vespa V50, PK50 vendita

Description

The 85 cc POLINI cylinder is the 50 mm bored version of the POLINI 75.

Polini has shifted the power and torque curve towards lower speeds by removing more material at the cylinder base than the 75. As a result, the channels are not fully released and the control times are shortened. In addition, a piston with a different dome contour was used.

This makes the 85 cc POLINI very well suited for all lazy cruisers. Also here the transmission ratio should be adapted due to the increased displacement (at least 3.00). The POLINI 85 is also best tasted with a torque strong exhaust like the ET3 or the SS 50/90 Banana.

NOTE:New version with modified cylinder head (cooling fins on the underside). Spark plug with long thread is required (e.g. B8ES or W3CC).
AI-translation