The BMW R75 is a global War II-era motorcycle and sidecar combo produced by the German company BMW.
Inside the 1930s BMW were creating a quantity of popular and highly effective motorcycles. In 1938 development of the R75 were only available in response to a demand from the German Military.
Preproduction types of the R75 were run by a 750 cc aspect valve engine, that was based on the R71 engine. However it was quickly found necessary to design an all-new OHV 750 cc engine for the R75 product. This OHV engine unit 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 motivated with an axle linked to the rear wheel of the motorcycle. They were built in with a locking differential and selectable road and off-road gear ratios by which all four and change gears functioned. This made the R75 highly manoeuvrable and with the capacity of negotiating most areas. A few other motorcycle manufactures, like FN and Norton, provided an optional drive to sidecars.
The BMW R75 and its own rival the Z?ndapp KS 750 were both broadly employed 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 (specified the BW 43), in which a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. They also arranged that the produce of the R75 would stop once production reached 20,200 units, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, processing 20,000 every year.
Since the goal of 20,200 BMW R75's was not reached, it continued to be in production before Eisenach factory was so badly harmed by Allied bombing that creation ceased in 1944. A further 98 systems were built by the Soviets in 1946 as reparations.
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