The BMW R75 is a World Warfare II-era motorcycle and sidecar blend made by the German company BMW.
In the 1930s BMW were creating a amount of popular and impressive motorcycles. In 1938 development of the R75 were only available in response to a demand from the German Military.
Preproduction models of the R75 were driven by way of a 750 cc side valve engine, which was based on the R71 engine. Nonetheless it was quickly found essential to design an all-new OHV 750 cc engine unit for the R75 product. This OHV engine motor later proved to be the basis for succeeding 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 trunk wheel of the motorcycle. They were equipped with a locking differential and selectable street and off-road products ratios through which all and change gears worked well. This made the R75 highly manoeuvrable and with the capacity of negotiating most floors. 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 utilized 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 building 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. They also arranged that the production of the R75 would stop once production reached 20,200 devices, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, making 20,000 each year.
Since the focus on of 20,200 BMW R75's was not reached, it remained in production until the Eisenach stock was so badly broken by Allied bombing that development ceased in 1944. A further 98 products were assembled by the Soviets in 1946 as reparations.
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