Advanced intake Crankshaft Vespa PK XL/FL Polini

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

You will be able to install it both in tuned engines and in standard engines, gaining a substantial intake charge.

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

Adaptable to Primavera type crankcase with NU204 bearing and KCRR2004 seal.

We have the same model in cone 19 suitable for Vespa Primavera, Vespa Super and SL.

It is essential to purchase the IR track to supplement the crankpin on the flywheel side, otherwise you will not be able to install the typical needle bearing.

• Stroke: 51
• Connecting rod: 97mm
• Cone: 20

Suitable for Vespa PK XL and Vespa FL. On PK S models, check the cone before purchasing.

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