Abstract: A motor vehicle pneumatic tire is made of polyurethane or another similar moldable material which hardens into an elastic plastic material and which has a substantially cylindrical or cylindrical belt insert mounted beneath the tread substantially composed of threads, wires or similar stability support elements which are mounted in the circumferential direction of the tire in a spaced-apart manner at a distance of 0.5-3.0 mm and which elements have a cross section of 0.5-2.5 mm. The stability support and the plastic mass of the belt insert encompassing the same having a tensile strength in the circumferential direction of at least 3 Mill.N and the elements of the stability support have a breaking strength of at least 1,500 N.

Abstract: A pneumatic tire made of polyurethane elastomers or other moldable material which can be made into an elastic, plastic material by means of a chemical reaction is provided. The tire includes a belt which is mounted beneath the tread surface which essentially consists of threads of a stress carrier, which threads run in the circumferential direction of the stress carrier. Alternatively, the belt is made of a moldable material which can be hardened into an elastic, plastic material having an E-modulus larger than 20,000 N/cm.sup.2. The tire is characterized by the provision of an increasing bending radius of the neutral axis of the tire sidewall from the tire bead to the edge of the belt.