High-end racing exhaust system Polini Big Evolution suitable for Vespa PK, S, XL 50cc, 125cc small frame vehicles.
The Evolution exhaust geometry and power band are optimized exclusively for the racetrack!! The surface is not treated or painted! We therefore recommend that you regularly clean the surface of the exhaust system with a damp cloth and treat it with a protective spray.
Note: For installation, it is necessary to adjust the rear shock with the spacers provided for this purpose. The original kickstand must be disassembled. The assembly is for all models only possible after adjustment to and on the frame.
The Evolution exhaust geometry and power band are optimized exclusively for the racetrack!! The surface is not treated or painted! We therefore recommend that you regularly clean the surface of the exhaust system with a damp cloth and treat it with a protective spray.
Note: For installation, it is necessary to adjust the rear shock with the spacers provided for this purpose. The original kickstand must be disassembled. The assembly is for all models only possible after adjustment to and on the frame.
