The BMW R75 is a global War II-era motorcycle and sidecar mixture produced by the German company BMW.
Inside the 1930s BMW were creating a number of popular and impressive motorcycles. In 1938 development of the R75 started in reaction to a request from the German Military.
Preproduction models of the R75 were run with a 750 cc area valve engine, that was predicated on the R71 engine unit. However it was quickly found essential to design an all-new OHV 750 cc engine motor for the R75 product. 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 powered with an axle connected to the rear wheel of the motorcycle. These were built in with a locking differential and selectable street and off-road gear ratios by 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 competitor the Z?ndapp KS 750 were both widely 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 Army, agreed after standardization of parts for both machines, with a view of eventually developing a Z?ndapp-BMW hybrid (chosen 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 systems, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, manufacturing 20,000 every year.
Since the focus on of 20,200 BMW R75's was not reached, it continued to be in production before Eisenach factory was so terribly ruined by Allied bombing that production ceased in 1944. A further 98 devices were put together by the Soviets in 1946 as reparations.
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