VESPA & PIAGGIO Riders

No, the modern scooter way of doing it is to use a larger diameter and wider tyre on the rear. But it is not uncommon to see a larger diameter tyre on the front, but try to use a narrower tyre if possible.

Schwalbe offer two tyre sizes for traditional geared Vespas

And varioud tyre sizes for the Automatic Piaggio, Gilera and Vespa scooters (see our tyre fitment guide on the home page)

3.00:10 are used for Vespa Small frame 50, 80, 100 and 125cc Scooters.
350:10 are used for large frame 125, 150, 200cc scooters.

With the introduction of metric tyre sizes a number of tyres can now be used for Vespas.

These can be 90/90:10, 100/80:10 and 100/90:10. (A tyre size can change from manufacturer to manufacturer. It's worth measuring your existing rolling circumference to compare to Schwalbe tyre circumferences)

For small frame Vespas you can use 3.00:10 front and rear or 90/90:10 front and rear. Or 3.00/10 front and 90/90:10 rear.
Small frame Vespas can use 3.50:10 tyres but require some engine casing modifications.

For the large frame Vespas you can use 3.50:10 front and rear.
To use 100/80 or 100/90:10 tyre these will need spacing away from from the engine as wider tyres will rub on the clutch cover.

There are three ways to choose tyre sizes:
1. Fit the same tyre front and back
2. Fit a wider tyre on the rear
3. You can use the same type of tyre front and back or mismatch tyre types to suit your riding.

There are two types of tyre sizes.
1. Imperial
2. Metric

For example:
1. Imperial. 3.00:10, means the tyre width is 3 inch wide (76.2mm) the tyre profile on an imperial tyre is 100% of the width, which in this case is 3 inch tall (76.2mm) And the ten is a 10 inch wheel rim.
2. Metric. 90/90:10, means the tyre width is 90mm, and has a tyre profile of 90% of the tyres width, in this case it would be 81mm tall and has a 10 inch wheel rim.

A good question, the answer is we do not know.
But:
10 inches = 254mm