The BMW R75 is a global War II-era motorcycle and sidecar combo made by the German company BMW.
In the 1930s BMW were producing a quantity of popular and impressive motorcycles. In 1938 development of the R75 started in response to a submission from the German Army.
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 unit. This OHV engine unit later became the foundation for following 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 installed with a locking differential and selectable street and off-road equipment ratios through which all and change gears worked. 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 competitor the Z?ndapp KS 750 were both broadly used 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 Military, agreed after standardization of parts for both machines, with a view of eventually creating a Z?ndapp-BMW hybrid (selected 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 make of the R75 would stop once production come to 20,200 units, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, processing 20,000 every year.
Since the concentrate on of 20,200 BMW R75's had not been reached, it remained in production until the Eisenach factory was so terribly destroyed by Allied bombing that creation ceased in 1944. A further 98 devices were constructed by the Soviets in 1946 as reparations.
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