Ingranaggi Secondari Malossi HTQ, 15/41 Piaggio Hexagon 125-150cc / Typhoon 125cc prima del '98

A longer transmission will get the power where your need it and increase your top speed, always under the condition that your engine is powerful enough to begin with. This means you should definitely use this transmission with tuning cylinders only, as original cylinders are simply not powerful enough.

Secondary transmission 15/41.
For Piaggio Hexagon 125-150cc / Typhoon 125cc before 1998.

Note - fluted shaft (before 1998).