Mini Midi Moto Petrolscooter. Tyre Ply: 2. This will fit any of the following tyre sizes 4.10/3.50-4 or 410/350-4 or 3.50-4 or 350-4 or 4.10-4 or 410-4. Tyre Size: 4.10 / 3.50 - 4. Two standard rubber treaded Tyres designed to be used with an Innertube.