Malossi MHR - Primary Gearing - HTQ Z 15 / 38 – Vespa LX / Sprint / ET2 – Piaggio Fly / Liberty / Zip – 2 Stroke – 6713339

If you've installed a larger Malossi cylinder on your two-stroke Vespa or Piaggio scooter, we recommend replacing both the primary and secondary gears with Malossi-developed versions with wider ratios. This increases top speed and eliminates the need to constantly rev the engine, extending its lifespan.

If you still have an original cylinder, this part is pointless, as the engine won't produce enough power. You'll need to replace both at the same time; replacing only the primary or secondary gears won't work.

Of course, these parts are only for use on the circuit; unfortunately, you are not allowed to drive them on public roads.