A vehicle wheel on which can be mounted a pneumatic tire, with the wheel being suitable for use during emergency operation of the tire. The tire is essentially made of rubber or rubber-like synthetic material, and has a carcass which is anchored in beads of the tire by being looped around bead cores....http://www.google.es/patents/US4694873?utm_source=gb-gplus-sharePatente US4694873 - Vehicle wheel with run-flat support
