
The BMW R75 is a global War II-era motorcycle and sidecar mixture made by the German company BMW.
In the 1930s BMW were producing a volume of popular and impressive motorcycles. In 1938 development of the R75 were only available in response to a demand from the German Military.
Preproduction models of the R75 were power by a 750 cc area valve engine, which was based on the R71 engine. Nonetheless it was quickly found necessary to design an all-new OHV 750 cc engine unit for the R75 product. This OHV engine later proved to be the basis for subsequent post-war twin BMW engines like the R51/3, R67 and R68.

The third side-car wheel was driven with an axle connected to the trunk wheel of the motorcycle. They were installed with a locking differential and selectable road and off-road gear ratios by which all and invert gears worked well. 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 rival the Z?ndapp KS 750 were both generally employed 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 Military, agreed after standardization of parts for both machines, with a view of eventually setting up a Z?ndapp-BMW hybrid (designated the BW 43), in which a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. They also arranged that the make of the R75 would stop once production reached 20,200 devices, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, manufacturing 20,000 every year.
Since the aim for of 20,200 BMW R75's was not reached, it continued to be in production until the Eisenach factory was so badly broken by Allied bombing that development ceased in 1944. A further 98 products were set up by the Soviets in 1946 as reparations.
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