The BMW R75 is a global War II-era motorcycle and sidecar blend made by the German company BMW.
In the 1930s BMW were creating a variety of popular and highly effective motorcycles. In 1938 development of the R75 were only available in respond to a request from the German Army.
Preproduction types of the R75 were driven by the 750 cc part valve engine, that was based on the R71 engine motor. However it was quickly found necessary to design an all-new OHV 750 cc engine unit 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 motivated with an axle connected to the rear wheel of the motorcycle. These were installed with a locking differential and selectable road and off-road items ratios by which all and reverse gears worked. This made the R75 highly manoeuvrable and with the capacity 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 greatly utilized by the Wehrmacht in Russia and North Africa, though over time 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 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. They also decided that the produce of the R75 would cease once production reached 20,200 devices, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, processing 20,000 each year.
Since the concentrate on of 20,200 BMW R75's had not been reached, it remained in production before Eisenach factory was so badly destroyed by Allied bombing that production ceased in 1944. An additional 98 systems were constructed by the Soviets in 1946 as reparations.
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