During the last years more military tasks have been transferred from tracked vehicles to wheeled armoured vehicles. Studies show that in most cases off-road mobility can be obtained by wheeled vehicles. It is a disadvantage of conventional pneumatic tires that they are not serviceable after a puncture. An off-road vehicle requires modern radial tires with cross-country profile, which must be able to convert the output of the vehicles engine into tractive effort on the ground. In military operations various types of tired vehicles are expected to operate over a great variety of surfaces in cross-country transport. Reliability is of particular importance.