The BMW R75 is a World Conflict II-era motorcycle and sidecar blend produced 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 need from the German Military.
Preproduction types of the R75 were powered by way of a 750 cc part valve engine, that was based on the R71 engine unit. Nonetheless it was quickly found essential to design an all-new OHV 750 cc engine for the R75 unit. This OHV engine later became the foundation 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 trunk wheel of the motorcycle. These were installed with a locking differential and selectable highway and off-road gear ratios through which all and invert gears performed. This made the R75 highly manoeuvrable and with the capacity of negotiating most surfaces. A few other motorcycle manufactures, like FN and Norton, provided an optional drive to sidecars.
The BMW R75 and its rival the Z?ndapp KS 750 were both greatly 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 Army, agreed upon standardization of parts for both machines, with a view of eventually making a Z?ndapp-BMW hybrid (chosen the BW 43), when a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. In addition they agreed that the make of the R75 would cease once production reached 20,200 items, and after that point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, manufacturing 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 terribly destroyed by Allied bombing that creation ceased in 1944. A further 98 devices were set up by the Soviets in 1946 as reparations.
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