BMW Concept Roadster Motorcycle Manteresting

The BMW R75 is a World Battle II-era motorcycle and sidecar mixture produced by the German company BMW.

Within the 1930s BMW were producing a range of popular and highly effective motorcycles. In 1938 development of the R75 started in reaction to a need from the German Army.

Preproduction types of the R75 were powered by a 750 cc part valve engine, which was based on the R71 engine motor. However it was quickly found essential to design an all-new OHV 750 cc engine for the R75 product. This OHV engine motor later became the basis for succeeding post-war twin BMW engines like the R51/3, R67 and R68.

The third side-car wheel was powered with an axle connected to the rear wheel of the motorcycle. They were built in with a locking differential and selectable road and off-road equipment ratios by which all and change gears proved helpful. This made the R75 highly manoeuvrable and with the capacity of negotiating most floors. A few other motorcycle manufactures, like FN and Norton, provided an optional drive to sidecars.

The BMW R75 and its own competitor the Z?ndapp KS 750 were both widely used by the Wehrmacht in Russia and North Africa, though over time of evaluation it became clear that the Z?ndapp was the superior machine. In August 1942 Z?ndapp and BMW, on the urging of the Army, agreed after standardization of parts for both machines, with a view of eventually building a Z?ndapp-BMW hybrid (specified the BW 43), when a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. In addition they decided that the production of the R75 would cease once production reached 20,200 items, and after that point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, processing 20,000 each year.

Since the target of 20,200 BMW R75's had not been reached, it continued to be in production until the Eisenach stock was so terribly damaged by Allied bombing that creation ceased in 1944. An additional 98 devices were set up by the Soviets in 1946 as reparations.

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