It appears you're interested in specifications for the Zündapp K 400 Kardan. This Sport model is powered by a Two cylinder boxer, four-stroke engine with 398.00 ccm (24.29 cubic inches) of actual displacement before compression. Fueling is metered via Carburettor. Bing 22mm allowing this machine to produce its 10.00 HP (7.3 kW) horsepower and torque. According to our records engine heat of the Zündapp K 400 Kardan is moderated by Air. You'll need to get familiar with the 4-speed transmission and pay attention to final drive Shaft drive (cardan) maintainence. Our best information shows that the front tire size is 3.50-19 and the rear is 3.50-19 . The entire package is supported by the frame, . We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Expanding brake (drum brake) front brakes and Expanding brake (drum brake) rear brakes. The Zündapp K 400 Kardan was launched in 1933, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.