Malossi Primary Gear Set HTQ Z 23/64 – longer gear ratio for your Vespa PX200E (-1997)

If you are running a tuning cylinder on your Vespa PX200E or have modified the engine, significantly more power is delivered. This is exactly when the problem with the original final gear ratio often becomes apparent: it is designed so that the stock engine can pull it without problems. With more HP, the RPM increases rapidly at higher speeds – the engine "spins itself to death," but the top speed hardly increases.

The Malossi Gear Set (Primary) HTQ Z 23/64 addresses exactly this: it brings the final RPMs to a significantly more pleasant level and allows the top speed to increase noticeably. The gears and intermediate shafts are processed to a first-class standard and designed for durability – ideal if you want to get more out of your Vespa PX 200.

And don't worry about the usual tall tales: a longer gear ratio does not automatically mean that your Vespa PX200E has poor acceleration. Often, minimally stiffer clutch springs are sufficient to compensate for this. On the contrary: if the transmission is too short for the available horsepower, you are even wasting valuable power because the engine could actually pull more.

Advantages & Features

• Longer primary ratio: reduces high RPMs at speed and makes driving more relaxed
• More top speed potential: additional power can be better converted into top speed
• First-class workmanship: high-quality gears and intermediate shafts
• Proven Malossi quality: gears with identical material or hardness grade for long durability
• Practical tip: often slightly stiffer clutch springs are enough to make optimal use of the longer gear ratio

Technical Details

• Manufacturer: Malossi
• Version: Primary gear set HTQ
• Number of teeth: Z 23/64

Compatibility (Vehicles)

• Vespa PX 200 (2-stroke) (VSX1T)
• Vespa PX 200 E / Lusso (Year 1983) (2-stroke) (VSX1T)
• Vespa PX 200 E GS (Grand Sport) (Year 1987) (2-stroke) (VSX1T)

Why Malossi?

Malossi transmissions stand for high-quality gears made of identical material or hardness grade – a strong plus for long durability, especially with high-performance setups on the Vespa PX 200.

OEM / Comparison Numbers

• 67 3888
• 673888