The BMW R75 is a World Warfare II-era motorcycle and sidecar combo produced 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 respond to a question from the German Military.
Preproduction models of the R75 were powered by way of a 750 cc part valve engine, that was predicated on the R71 engine motor. Nonetheless it was quickly found necessary to design an all-new OHV 750 cc engine unit for the R75 unit. This OHV engine later proved to be the basis for following post-war twin BMW engines like the R51/3, R67 and R68.
The third side-car wheel was influenced with an axle connected to the trunk wheel of the motorcycle. These were equipped with a locking differential and selectable highway and off-road items ratios by which all four and invert gears worked well. This made the R75 highly manoeuvrable and capable of negotiating most surfaces. A few other 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 employed by the Wehrmacht in Russia and North Africa, though after a period 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 Military, agreed upon 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. In addition they arranged that the produce of the R75 would stop once production reached 20,200 items, and after that point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, making 20,000 every year.
Since the target of 20,200 BMW R75's had not been reached, it remained in production before Eisenach manufacturing plant was so badly ruined by Allied bombing that creation ceased in 1944. A further 98 products were built by the Soviets in 1946 as reparations.
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