Primary transmission Minarelli horizontal long crankcase 13/44 Polini

The transmission ratios extend the final drive of the motorcycle.

If the engine has enough power and can handle a longer transmission ratio, the top speed increases.

The original cylinder in most cases does not have enough power, so it will need to be replaced with a more powerful one.

ATTENTION! For lightly tuned engines, we recommend the 13/44 transmission (extends by 15.50%); for highly tuned engines, the 14/42 setup can be used (extends by 25.00%).
The 16/40 transmission (extends by 60.00%) can only be used on fully tuned engines!
If you are not sure which is the ideal transmission for your setup, please contact us.