The BMW R75 is a World Battle II-era motorcycle and sidecar combo made by the German company BMW.
Within the 1930s BMW were creating a number of popular and impressive motorcycles. In 1938 development of the R75 were only available in response to a demand from the German Army.
Preproduction models of the R75 were power by way of a 750 cc part valve engine, which was based on the R71 engine unit. However it was quickly found essential to design an all-new OHV 750 cc engine for the R75 device. This OHV engine later proved to be the foundation for succeeding post-war twin BMW engines like the R51/3, R67 and R68.
The third side-car wheel was influenced with an axle linked to the trunk wheel of the motorcycle. These were installed with a locking differential and selectable road and off-road equipment ratios by which all four and reverse gears worked. This made the R75 highly manoeuvrable and capable of negotiating most surfaces. A few other 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 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 making a Z?ndapp-BMW hybrid (designated 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 items, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, developing 20,000 every year.
Since the target of 20,200 BMW R75's had not been reached, it continued to be in production until the Eisenach manufacturer was so badly ruined by Allied bombing that production ceased in 1944. A further 98 systems were set up by the Soviets in 1946 as reparations.
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