The BMW R75 is a global Battle II-era motorcycle and sidecar combination produced by the German company BMW.
Inside the 1930s BMW were producing a variety of popular and highly effective motorcycles. In 1938 development of the R75 started in reaction to a demand from the German Army.
Preproduction models of the R75 were power with a 750 cc area valve engine, which was predicated on the R71 engine motor. However it was quickly found necessary to design an all-new OHV 750 cc engine motor for the R75 device. This OHV engine unit later proved to be the foundation for subsequent post-war twin BMW engines like the R51/3, R67 and R68.
The 3rd side-car wheel was influenced with an axle linked to the trunk wheel of the motorcycle. They were fixed with a locking differential and selectable road and off-road gear ratios by which all four and reverse gears proved helpful. 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 extensively 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 building a Z?ndapp-BMW hybrid (selected the BW 43), when a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. They also agreed that the produce of the R75 would stop once production reached 20,200 systems, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, manufacturing 20,000 each year.
Since the concentrate on of 20,200 BMW R75's had not been reached, it continued to be in production before Eisenach stock was so badly harmed by Allied bombing that development ceased in 1944. An additional 98 models were built by the Soviets in 1946 as reparations.
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