Vespa Primavera/Super/SL crankshaft 19 mm cone Polini

Crankshaft Vespa Primavera/Super/SL 19 cone Polini.

Polini reaches many types of engines with this advanced intake crankshaft.

You can install it on both tuned engines and stock engines, gaining a substantial intake charge.

The Connecting rod is CNC machined to obtain greater reliability and reduce as much as possible any engine vibrations.

We have the same model in 20 cone valid for Vespa PK XL and Vespa FL

• Stroke: 51
• Connecting rod: 97mm
• Cone: 19

On PK S models, check the cone before purchasing it.

Attention! The balancing checks must be carried out before installing it in the engine, since manufacturers deny the warranty for any balancing fault found after installation.