The BMW R75 is a global War II-era motorcycle and sidecar combination made by the German company BMW.
Inside the 1930s BMW were producing a quantity of popular and highly effective motorcycles. In 1938 development of the R75 started in response to a question from the German Army.
Preproduction types of the R75 were driven by way of a 750 cc part valve engine, that was based on the R71 engine motor. Nonetheless it was quickly found essential to design an all-new OHV 750 cc engine unit for the R75 product. This OHV engine unit later proved to be the basis 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 fixed with a locking differential and selectable street and off-road equipment ratios through which all and invert gears did the trick. 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 own competitor the Z?ndapp KS 750 were both extensively utilized by the Wehrmacht in Russia and North Africa, though after a period of analysis 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 (designated the BW 43), when a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. In addition they agreed that the production 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 focus on of 20,200 BMW R75's had not been reached, it remained in production until the Eisenach stock was so badly ruined by Allied bombing that production ceased in 1944. A further 98 items were assembled by the Soviets in 1946 as reparations.
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