The BMW R75 is a global Conflict II-era motorcycle and sidecar combination produced by the German company BMW.
In the 1930s BMW were creating a variety of popular and impressive motorcycles. In 1938 development of the R75 started in response to a need from the German Army.
Preproduction types of the R75 were driven by the 750 cc side valve engine, which was predicated on the R71 engine. 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 proved to be the basis for subsequent post-war twin BMW engines like the R51/3, R67 and R68.
The 3rd side-car wheel was motivated with an axle linked to the trunk wheel of the motorcycle. They were equipped with a locking differential and selectable road and off-road gear ratios by which all four and change gears did the trick. 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 widely used by the Wehrmacht in Russia and North Africa, though over time 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 after standardization of parts for both machines, with a view of eventually setting up a Z?ndapp-BMW hybrid (selected 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 cease once production come to 20,200 items, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, developing 20,000 each year.
Since the focus on of 20,200 BMW R75's was not reached, it continued to be in production until the Eisenach stock was so badly harmed by Allied bombing that creation ceased in 1944. A further 98 items were built by the Soviets in 1946 as reparations.
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