Cylinder -POLINI- 65 cc Sport - Piaggio Velofax, Vespino, Gilera GSA, ALX

Polini introduces the new cylinder kit with a 43 mm diameter and 65 cm³ displacement, developed for the Gilera GSA, ALX, and Vespino F9 models.

The cast-iron cylinder has been redesigned in terms of valve timing, intake ports, and exhaust ports to improve the engine’s overall performance.
The result is faster throttle response, more power, and improved high-rpm performance.
Compared to the previous version, the new cylinder kit delivers 1 HP more and extends the engine’s rpm range by 1000 U/min.