The BMW R75 is a World Conflict II-era motorcycle and sidecar mixture made by the German company BMW.
Within the 1930s BMW were creating a range of popular and highly effective motorcycles. In 1938 development of the R75 were only available in reaction to a request from the German Military.
Preproduction types of the R75 were driven by way of a 750 cc aspect valve engine, that was based on the R71 engine. However it was quickly found necessary to design an all-new OHV 750 cc engine unit for the R75 unit. This OHV engine motor later became the foundation for succeeding post-war twin BMW engines like the R51/3, R67 and R68.
The 3rd side-car wheel was driven with an axle connected to the rear wheel of the motorcycle. They were built in with a locking differential and selectable street and off-road equipment ratios by which all four and reverse gears did the trick. This made the R75 highly manoeuvrable and with the capacity of negotiating most areas. Additional 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 broadly utilized by the Wehrmacht in Russia and North Africa, though over time of analysis 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 developing a Z?ndapp-BMW hybrid (specified the BW 43), in which a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. They also decided that the manufacture of the R75 would stop once production come to 20,200 products, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, making 20,000 every year.
Since the aim for of 20,200 BMW R75's was not reached, it remained in production before Eisenach factory was so terribly broken by Allied bombing that development ceased in 1944. An additional 98 models were constructed by the Soviets in 1946 as reparations.
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