Piaggio Ciao mono drive or vario drive?

Differences between Piaggio Ciao / Bravo / Si / Boxer mono drive and vario drive

Caution ! First things first - the components of the mono drive and those of the variator drive are among each other not compatible or mixable! The crankshaft, in turn, is the same for both types of drive.

The easiest way to recognize this ratio from the outside is by looking at the side covers on the left in the direction of travel.
Has the side cover at the back too a bulge is a variator model.

1. Variator drive
2. Mono drive

Converter / variator

With the variator model, the converter unit with the integrated clutch is located at the rear. The variator sits in front. The advantage of the variator drive is that it provides you with a stepless automatic. Shortly geared when starting, long geared to speed. The principle is still used in every automatic scooter today.

3. Combined converter / clutch unit
4. Variator

Mono drive

Classically, the German mopeds have the mono drive with 25 km / h, but there are also moped versions with the mono drive, without a variator.

5. pulley
6. Coupling

Clutch bell, pulley and V-belt

The front sits Kupplungsglocke, inside it runs fan belt on a moped on a groove with a diameter of 26mm inside. (6)

The rear pulley is mounted directly on the mono gearbox. The mono gear can be recognized by the fact that the gear shaft only protrudes approx. 13mm from the gear and only the flat belt pulley is installed (5). This has a diameter of 25mm for the 90km / h moped. The standard transmission of the Ciao has a gear ratio of 10,5: 1, that of the Bravo of 8,5: 1

( see also Piaggio Ciao moped tuning )

7. Variator transmission
8. Single gear for pulley

Sensible upgrades or tuning of the translation

Single gear:

The simplest tuning to increase the top speed is extending the translation.

We have exactly three options with the mono gearbox:

Exchange of the front clutch, moped clutch out and 30km / h clutch in.
The standard coupling has an inner diameter of 26mm, the 30km / h coupling of 41mm.
Replacement of the rear pulley. The original pulley of the Ciao has a diameter of 90mm.
But only the pulleys with 70mm or 80mm are really mobile because the tightening is still acceptable when driving off.
Exchange of the transmission. To determine the gear ratio, take a look at: https://blog.scooter-center.com/piaggio-mofa-tuning-und-setup/

INFO: The standard moped transmission of the Ciao has a ratio of 10.5:1By installing the Bravo 8.5: 1 gearbox, the overall ratio is increased by approx. 20%.

TIPP: Very inconspicuous as the clutch and pulley can remain original.