Malossi HTQ Secondary Gearbox 22/45 – longer ratio for more actual top speed

When you install a tuning cylinder or modify your engine in other ways, significantly more power is suddenly available – and that is exactly what can be converted into higher top speed. The problem: the original final drive ratios are usually designed so that the stock engine can pull them without problem with its power. As soon as more horsepower is applied, the engine quickly reaches a "dead" point at higher speeds: the RPMs increase sharply, but the top speed hardly increases.

With the Malossi HTQ secondary gearbox 22/45, you bring the final RPMs to a significantly more pleasant level and allow the top speed to increase substantially. The gears and intermediate shafts are not only first-class in workmanship, but also exactly designed for this purpose – ideal if you want to get everything in terms of performance out of your Vespa GTS 300 Super, Vespa GTV 300 or also a Piaggio MP3 300.

And don't worry about the typical urban legends ("With a longer ratio, it won't move from a standstill"): usually, minimally stiffer clutch springs are enough to compensate for this. On the contrary – if the gearbox is too short for the available horsepower, you are actually wasting valuable power because the engine could actually pull significantly more.

Advantages & Features

• Ratio 22/45 (Secondary gearbox / longer final drive ratio)
• Noticeably lowers the final RPM at high speed
• Enables a significantly higher top speed with a tuned engine
• First-class workmanship of gears and intermediate shafts
• Can compensate for starting behavior if necessary with slightly stiffer clutch springs
• Helps to not waste power when the stock gearbox is too short

Technical Details

• Type: Secondary gearbox / gear ratio
• Ratio: 22/45
• OEM No. (for comparison purposes): 6714844

Compatibility / Vehicles

Suitable for many models, such as Vespa GTS 300 Super, Vespa GTV 300, Piaggio MP3 300 – but also for the following vehicles:

• Piaggio MP3 300
• Vespa GTS 250 (M45)
• Vespa GTS 300 Super (M45200)
• Vespa GTS i.e. / Touring 300 (ZAPMA3300)
• Vespa GTS i.e. / Touring 4V HPE 300
• Vespa GTV 250 (M45)
• Vespa GTV 300 (M45201)

Search Terms / Assignment (internal)

• Gearbox
• Gear ratio
• Main shaft
• Axle shaft
• Drive shaft