POLINI primary ratio transmission teeth 22/63 for VESPA SPECIAL, XL, PK 2T 75 and 100

Ideal to accompany and support an advanced configuration. Here is the clutch, POLINI primary transmission ratio with helical teeth. High quality, its materials and its study are made in order to offer resistance and reliability to any test. With helical teeth, reports will be longer, thanks to the materials and gearing system, the gear will be more gradual than straight teeth and will reduce friction, noise, vibration ... while improving performance .

Specific treated steel and hardened steel crown. This clutch / bell bear the larger engine configurations such as high engine Polini. To accompany Polini clutch plates that ensure a better grip of the clutch pressure, thanks to the greater number of discs and springs that are more hard compared to the original ones.

Technical characteristics:

- Primary ratio Z = 22/63

Mounts on:

-VESPA PK - VESPA SPECIAL - VESPA XL ... 75 and 100 2T