This BENELLI main shaft is part of the BENELLI 4-speed gearbox for Vespa Wideframe engines V1-V15 (built 1948-50).
When using the gears of the 2-channel engines from 1950 onwards, this main shaft can be used as a replacement for the original main shaft of the 1-channel engines (V1-V15). These are not available as reproductions.
BENELLI
Transmission parts from Stefano Benelli justifiably enjoy a very good reputation in the Vespa scene. If you are looking for reliable racing technology for your gearbox, you will find it here. Hardened to an average of 60 HRC, Benelli parts offer exactly the perfect balance of sufficient hardness and the necessary elasticity to withstand the enormous loads in a racing engine.
Stefano now also offers his enormous expertise in the form of a complete gearbox for the Wideframe models. This includes the four gears, the auxiliary shaft, the auxiliary shaft axle as well as a gearshift cross with shift pin bush.