The BMW R75 is a World Battle II-era motorcycle and sidecar mixture produced by the German company BMW.
Inside the 1930s BMW were creating a amount of popular and highly effective motorcycles. In 1938 development of the R75 started in response to a need from the German Military.
Preproduction types of the R75 were powered by way of a 750 cc part valve engine, that was based on the R71 engine. Nonetheless it was quickly found necessary to design an all-new OHV 750 cc engine for the R75 product. This OHV engine unit later became the foundation for subsequent post-war twin BMW engines like the R51/3, R67 and R68.
The 3rd side-car wheel was driven with an axle linked to the trunk wheel of the motorcycle. These were fitted with a locking differential and selectable road and off-road items ratios by which all and invert gears performed. This made the R75 highly manoeuvrable and with the capacity of negotiating most surfaces. Additional motorcycle manufactures, like FN and Norton, provided an optional drive to sidecars.
The BMW R75 and its rival the Z?ndapp KS 750 were both broadly utilized by the Wehrmacht in Russia and North Africa, though after a period 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 setting up a Z?ndapp-BMW hybrid (chosen the BW 43), in which a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. In addition they decided that the manufacture of the R75 would stop once production reached 20,200 systems, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, developing 20,000 every year.
Since the target of 20,200 BMW R75's was not reached, it continued to be in production before Eisenach factory was so badly broken by Allied bombing that creation ceased in 1944. An additional 98 models were constructed by the Soviets in 1946 as reparations.
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