Streamlining was important as aerodynamics was the first priority of the team who wanted all the moving parts covered, dirt and mud protection, and an elegant style.
[2] The first impressions of the new motorcycle was of a streamlined racing machine with rounded covers for the front and rear wheels, aerodynamically improved fork, frame, and fuel tank all built on a tubular framework covered in sheet metal.
[1] The rear suspension was linked to the lower end of the tubular frame and featured flexible rubber and metal elements that did not require servicing.
Steering was much like an ordinary motorcycle but with more vertical telescopic elements than usual, which translated into a wheelbase that wouldn't change much whenever the front fork dived.
The front wheel with integrated engine had a combined weight of 50 kg (110 lb).
Additionally, a custom carburetor without a float needle didn't have the problems caused by vibration.
This arrangement and the recoil of the pistons in the turning direction secured a perfect balance of the moving parts.
[1] This design was intended for civilian production but the start of World War II cancelled those plans.
One motorcycle was discovered by the US Army in the spring of 1945 at a German military installation but it is not known if this was the original prototype or another Killinger und Freund Motorrad.