Gearbox (gears + gear cluster) -BENELLI type GPX- Vespa PX125, PX150, PX200, T5 125cc, Cosa – vendita lampo

Gearbox parts by Stefano Benelli enjoy a very good reputation in the racing 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 the perfect balance of sufficient hardness and necessary elasticity to withstand the enormous stresses and strains of a racing engine.

The GPX version offered here is a special, very closely stepped racing gearbox designed for maximum propulsion on the race track. For normal road use, it should be primarily combined with the longest possible reduction ratio (BGM 25/62) in order to achieve a sufficiently high top speed.

In direct comparison with a PX200 series gearbox, all four gears of the BENELLI GPX, in its shortest variant (12-12-15-15), are in the range of what the series gearbox already covers with three gears. I.e. the fourth gear with the Benelli is as short as the third gear of the series transmission (same primary gear ratio assumed).

The GPX shafts are used with a special ball bearing (15x32x13mm), which is also included.

Benelli offers three different shafts (in bold the deviating values to the original gearbox):

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