The K800 was produced from 1933 to 1938 with 2600pcs for civil and 4692pcs for military use. In 1934, the civilian Zündapp K800 motorcycle began to serve the Wehrmacht. For this purpose, the design was strengthened, and several versions of the sidecar were created. The Zündapp K800 was the only German army four-cylinder motorcycle. The boxer engine developed 20 hp at 4000 rpm. K800 could reach speeds of up to 100km/h. The drive to the rear wheel was carried out by means of a cardan transmission. Despite the high-torque engine and smooth running, the motorcycle had reliability problems, and its cross-country ability was insufficient for the Eastern Front.