The BMW R75 is a World Conflict II-era motorcycle and sidecar combination made by the German company BMW.
In the 1930s BMW were creating a quantity of popular and impressive motorcycles. In 1938 development of the R75 were only available in respond to a submission from the German Army.
Preproduction types of the R75 were run with a 750 cc aspect valve engine, that was based on the R71 engine unit. Nonetheless it was quickly found necessary to design an all-new OHV 750 cc engine for the R75 product. This OHV engine later became the basis for subsequent 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 rear wheel of the motorcycle. They were installed with a locking differential and selectable highway and off-road gear ratios through which all four and change gears proved helpful. This made the R75 highly manoeuvrable and with the capacity of negotiating most surfaces. Additional 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 generally used 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 Military, agreed after standardization of parts for both machines, with a view of eventually creating 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 agreed that the make of the R75 would stop once production come to 20,200 units, and after that point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, manufacturing 20,000 each year.
Since the target of 20,200 BMW R75's was not reached, it remained in production until the Eisenach manufacturing plant was so badly damaged by Allied bombing that development ceased in 1944. A further 98 products were constructed by the Soviets in 1946 as reparations.
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