German motorcycle Zündapp K800 with sidecar and crew

The German motorcycle Zündapp K800 is considered one of the most beautiful motorcycles in history. It was produced from 1933 to 1938, with a total of 7,569 units made. The Zündapp K 800 was equipped with a 4-cylinder, boxer engine with a power output of 20 hp. The military version of the motorcycle was especially favored by soldiers, but this model often had issues with oil-fouled spark plugs in the rear cylinders due to insufficient cooling. During World War II, the Wehrmacht had about 550 units of the military version of this motorcycle in service.