The Treaty of Versailles forbade the reconstruction of the German army. Nevertheless, its commanders evaded the obstacle by introducing vehicles of the civil production, which was not subject to any limitations. Thus they set up entire companies equipped with motorvehicles, developing in this way a motorized mentality among the crews. The Z??ndapp. with a production total of 18.000 units due to its structure which guaranteed easy and economical handling - was considered one of the most modern accomplishments of the age in the field of motorcycle construction. Because of its extraordinary qualities, the Z??ndapp could follow and escort the tank units of the Wehrmacht and the Waffen-SS to all theatres of operations, especially in Russia, since the side car was even furnished with heating for hands and feet of the passenger. Z??ndapps were distributed to all units of the armed forces, Only after 1943 were they were replaced by 4-wheel vehicles.