
The BMW R75 is a World Conflict II-era motorcycle and sidecar mixture produced by the German company BMW.
Within the 1930s BMW were creating a range of popular and highly effective motorcycles. In 1938 development of the R75 started in response to a get from the German Military.
Preproduction types of the R75 were run with a 750 cc side valve engine, that was based on the R71 engine unit. However 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 powered with an axle linked to the rear wheel of the motorcycle. These were fitted with a locking differential and selectable highway and off-road equipment ratios through which all and invert gears worked well. This made the R75 highly manoeuvrable and capable of negotiating most areas. 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 broadly employed 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 Army, agreed upon standardization of parts for both machines, with a view of eventually making a Z?ndapp-BMW hybrid (chosen the BW 43), when a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. In addition they decided 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, developing 20,000 each year.
Since the target of 20,200 BMW R75's had not been reached, it remained in production before Eisenach stock was so badly harmed 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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