The BMW R75 is a global Battle II-era motorcycle and sidecar mixture made by the German company BMW.
Within the 1930s BMW were producing a amount of popular and highly effective motorcycles. In 1938 development of the R75 started in respond to a demand from the German Military.
Preproduction types of the R75 were powered with a 750 cc area valve engine, which was based on the R71 engine unit. Nonetheless it was quickly found necessary to design an all-new OHV 750 cc engine motor for the R75 device. This OHV engine motor later became the basis for following 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 gear ratios through which all and invert gears worked well. This made the R75 highly manoeuvrable and capable of negotiating most surfaces. 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 greatly 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 upon standardization of parts for both machines, with a view of eventually making 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. They also agreed that the production of the R75 would cease once production reached 20,200 units, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, manufacturing 20,000 every year.
Since the goal of 20,200 BMW R75's was not reached, it continued to be in production before Eisenach factory was so badly ruined by Allied bombing that production ceased in 1944. An additional 98 items were built by the Soviets in 1946 as reparations.
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