Improved implement for demounting and mounting those self-supporting tyres which comprise a tyre with beads of different diameters and a support ring to be inserted into the well in the wheel rim, this latter being provided with seats for receiving the dif...

The machine comprises a working station (P) and a fixed bed (10) disposed to the rear side of the working station (P). For rotating a wheel (20) there is provided a unit which is carried by a support bracket (30) connected to the fixed bed (10) in such a m...