Malossi HTQ Secondary Gearbox 14/43 – longer gear ratio for 125ccm 4T

If you increase the power of your 125ccm 4T engine through machining or the installation of a tuning cylinder, there is often still potential in the top speed – and this is exactly where the gear ratio comes into play. The original final drive ratio is usually chosen so that the stock engine can pull it without problems. However, as soon as more hp is available, the engine quickly reaches a "dead end" at higher speeds: the RPM increases sharply, but the top speed barely grows.

With the Malossi HTQ secondary gearbox 14/43, you get a high-quality, precise solution to bring the final RPMs to a pleasant level and simultaneously noticeably increase the top speed. The gears and intermediate shafts are not only first-class in craftsmanship, but are also designed for the requirements of more powerful setups – ideal, for example, on the Yamaha YP 125 Majesty, MBK Skyliner 125, or Benelli Velvet 125.

And don't worry about the usual myths: a longer gear ratio does not automatically mean that the scooter has poor acceleration. Often, minimally stiffer clutch springs are sufficient to compensate for this. On the contrary: if the gearbox is far too short for the available "horsepower", you are wasting valuable performance – because the engine could actually pull more.

Advantages & Features

• Longer secondary gear ratio 14/43 for higher top speed
• Reduces "over-revving": lower RPM at higher speed
• First-class processing of gears and intermediate shafts
• Ideal for more power through tuning cylinders or modified engines
• Everyday tip: starting behavior can usually be balanced with slightly stiffer clutch springs

Technical Details

• Product: Secondary gearbox (final drive)
• Ratio: 14/43
• Engine: 125ccm 4T
• OEM number (for comparison purposes only): 6711238

Compatibility (Vehicles)

• Benelli Velvet 125
• Italjet Jupiter 125
• Italjet Millenium 125
• MBK Doodo 125
• MBK Skyliner 125
• MBK Thunder 125
• Malaguti Madison / R 125 (Yamaha engine)
• Renault Kouranos 125
• Yamaha Maxster 125
• Yamaha Teos 125
• Yamaha YP 125 Majesty (Year 1998 - 2000)
• Yamaha YP 125 Majesty (from Year 2001)

Note on Comparison Number

The specified OEM No. 6711238 serves exclusively for comparison purposes.