The BMW R75 is a World War II-era motorcycle and sidecar mixture made by the German company BMW.
Inside the 1930s BMW were creating a amount of popular and impressive motorcycles. In 1938 development of the R75 were only available in response to a demand from the German Military.
Preproduction models of the R75 were driven by a 750 cc aspect valve engine, which was predicated on the R71 engine. However it was quickly found essential to design an all-new OHV 750 cc engine for the R75 unit. 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 driven with an axle connected to the rear wheel of the motorcycle. These were equipped with a locking differential and selectable highway and off-road products ratios by which all and change gears worked. This made the R75 highly manoeuvrable and with the capacity of negotiating most floors. Additional motorcycle manufactures, like FN and Norton, provided an optional drive to sidecars.
The BMW R75 and its own rival the Z?ndapp KS 750 were both greatly 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 upon standardization of parts for both machines, with a view of eventually setting up 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 manufacture of the R75 would stop once production come to 20,200 devices, and after that point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, processing 20,000 each year.
Since the aim for of 20,200 BMW R75's was not reached, it remained in production until the Eisenach stock was so terribly damaged by Allied bombing that production ceased in 1944. A further 98 models were put together by the Soviets in 1946 as reparations.
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