Crankshaft advanced intake Vespa PK XL/FL Polini

Crankshaft advanced intake Vespa PK XL/FL Polini.

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

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

Compatible with Primavera-type crankcase with NU204 bearing and KCRR2004 seal

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

It is essential to purchase the IR race to shim the flywheel-side crank pin; otherwise you will not be able to fit the typical bearing with needles.

• 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! It is necessary to carry out the balancing checks before installing it in the engine, since manufacturers deny the warranty for any balancing fault detected after installation.