Malossi HTQ Primary Gearbox 20/46 – longer gear ratio for your Aprilia Leonardo 125/150 (Rotax)

If you have extracted more power from your Aprilia Leonardo 125 or Aprilia Leonardo 150 (Rotax engine) – e.g. through machining or the installation of a tuning cylinder – the next bottleneck quickly appears: the original final gear ratio. From the factory, this is usually chosen so that the stock engine can pull it without problems. With more hp, at higher speeds, often only the rpm increases, the engine "spins itself to death", but the top speed hardly grows.

This is exactly where the Malossi HTQ primary gearbox 20/46 comes in: The gears and intermediate shafts are not only first-class in workmanship, they bring your final rpm back to a pleasant level and simultaneously enable a noticeably higher top speed – ideally tuned for the Aprilia Leonardo 125 and Aprilia Leonardo 150 with Rotax engine.

And don't worry about the usual locker-room myths: A longer gear ratio does not automatically mean that your scooter "won't move anymore". Usually, minimally stiffer clutch springs are enough to compensate for this cleanly. On the contrary: If the gearbox is too short for the available horsepower, you are wasting valuable power because the engine could actually pull much more.

Advantages & Features

• Longer primary gear ratio 20/46 for more top speed with appropriate engine power
• Lowers high rpm at speed – the engine runs more relaxed
• First-class workmanship of gears and intermediate shafts
• Ideal for power increases (e.g. through cylinder machining or tuning cylinder)
• Often easily compensated for in acceleration with slightly stiffer clutch springs

Technical Details

• Manufacturer/Series: Malossi HTQ
• Type: Primary gearbox
• Ratio: 20/46
• OEM number (for comparison purposes): 6711360

Compatibility (Vehicles)

• Aprilia Leonardo 125 (Rotax engine)
• Aprilia Leonardo 150 (Rotax engine)