The performance level increases with the new Polini FOR RACE analog ignition designed for Vespa PK 50/ 125 e APE 50 with Ø 20 flywheel mounts.

PERFORMANCE:
Thanks to the very light weight of the flywheel, just 1.2kg with a moment of inertia  of 25gg/cm3 , the engine has fast response and it is more aggressive in terms of thrust even at low rpm. The acceleration is sharper and truly impressive.
To customize the performance you can install additional weights of 20 or 45 kg cm3 (to be purchased separately) to adapt the inertia to your driving. 

TECHNOLOGY AND RELIABILITY
The 4-pole 12V stator ensures stable power to make the lights and the battery work. The wiring is dedicated to each application, assuring easy and precise assembly. Coil and CDI are integrated for optimal ignition management. Some models come with the voltage regulator.

OPTIMIZED COOLING
The fan improves air flow and ensures more efficient cooling even under more extreme conditions of use. Fixing points have been increased for more stability.

ELECTRIC STARTER
An electric starter ring gear, item 171.0727, is available and suitable for the following ignitions: 171.0561 and 171.0563