Malossi HTQ secondary gears Z 14/43 forced fitting D 17

The Malossi HTQ secondary gears are characterized by a forced coupling of Ø 17 and teeth Z 14/43. Made of special straight-tooth steel, these gears offer numerous advantages.

First of all, they completely eliminate axial thrust, thus reducing stress on the bearings. Furthermore, thanks to their production with highly precise machines, they are cemented, tempered, and ground to ensure high levels of silence and durability.

It is important to note that Piaggio made modifications to the coupling of secondary transmission gears starting from 1998, with respective diameters of Ø 18 and Ø 17.67. However, precise information regarding the start dates of the new gears' series production and the corresponding engine numbers is not available.

Therefore, to facilitate the replacement of ratios on these scooters, it is possible to consult a compiled table indicating the first and second series of gears.