Primary transmission Minarelli horizontal long crankcase 15/50 Polini

Secondary and primary transmissions from TopPerformances.
This Top transmission and the one from Stage6 are our favourites. The key advantage is that it already comes factory-pressed.
You only need to remove the old gear set and install the new transmission.
Available in various sizes. TopPerf transmission (primary) - 15/50 (1:3.07)

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