Vespa PK50 S XL XL2 POLINI 85cc Cylinder Kit

What honey is for the APE, Italian for bee, a POLINI is for the engine.

In direct comparison with the DR, the POLINI scores points with a substantially longer exhaust port timing and the 6 transfer ports. Revs and power go hand in hand with the POLINI, but it is already crying out for a longer primary transmission. Anyone who provides the cylinder with the appropriate periphery will be rewarded with a solid basis for 2-person operation. Longer distances and full-throttle stretches will then also be no problem!

Conclusion: Powerful cylinder, layout strongly resembles that of the 75ccm POLINI, but has clear advantage in capacity. Sportier than the competition, thanks to the higher compression and the additional transfers. With the right primary, thermally balanced and long-lasting.