Vespa PK S Automatic 125 [1984-1989] - crankshaft PK cone 19

POLINI FOR RACE crankshaft with cone 19

The POLINI crankshaft cone 19 was developed for the Vespa PK S Automatic 125 in the 1984-1989 model year range. As a FOR RACE crankshaft, it combines a connecting rod design designed for load-bearing capacity with a revised design of the intake tract and an optimized crankshaft design.

Function and construction

• The connecting rod is milled from a block. This means it is designed to be more resilient to stress.
• The changed setting of the intake tract aims to improve engine performance.
• The optimized crankshaft design is designed to reduce vibration.
• The version is intended for engines with cone 19.

Vehicle assignment

The crankshaft is assigned to the Vespa PK S Automatic 125 from the years 1984 to 1989. The complete year range serves as a guide when selecting the right engine part.

Suitable for original and modified engines

POLINI recommends installing the crankshaft on both original and modified engines. This makes the design suitable for repair and engine construction projects where a FOR RACE crankshaft with cone 19 is intended.

Before making your selection, please check whether the cone 19 version fits the intended engine configuration.