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The BMW R75 is a World Warfare II-era motorcycle and sidecar combo made by the German company BMW.

Inside the 1930s BMW were producing a number of popular and impressive motorcycles. In 1938 development of the R75 started in respond to a demand from the German Military.

Preproduction types of the R75 were powered by way of a 750 cc part valve engine, which was based on the R71 engine unit. However it was quickly found necessary to design an all-new OHV 750 cc engine unit for the R75 unit. This OHV engine later proved to be the basis for following 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 rear wheel of the motorcycle. These were fitted with a locking differential and selectable street and off-road items ratios by which all and reverse gears performed. 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 generally used 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 Military, agreed after standardization of parts for both machines, with a view of eventually making a Z?ndapp-BMW hybrid (specified the BW 43), when a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. In addition they arranged that the production of the R75 would cease once production come to 20,200 systems, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, making 20,000 every year.

Since the target of 20,200 BMW R75's was not reached, it continued to be in production until the Eisenach manufacturing plant was so badly ruined by Allied bombing that production ceased in 1944. An additional 98 devices were set up by the Soviets in 1946 as reparations.

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