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 range of popular and impressive motorcycles. In 1938 development of the R75 started in response to a need from the German Military.
Preproduction models of the R75 were powered with a 750 cc aspect valve engine, which was based on the R71 engine motor. Nonetheless it was quickly found essential 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 third side-car wheel was powered with an axle connected to the trunk wheel of the motorcycle. They were equipped with a locking differential and selectable road and off-road items ratios through which all and reverse gears performed. This made the R75 highly manoeuvrable and capable 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 rival the Z?ndapp KS 750 were both extensively 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 Army, agreed after standardization of parts for both machines, with a view of eventually creating 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 arranged that the produce of the R75 would cease once production come to 20,200 products, 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 manufacturer was so badly ruined by Allied bombing that production ceased in 1944. A further 98 units were put together by the Soviets in 1946 as reparations.
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