The BMW R75 is a World Warfare II-era motorcycle and sidecar mixture made by the German company BMW.
Within the 1930s BMW were producing a number of popular and impressive motorcycles. In 1938 development of the R75 started in response to a demand from the German Military.
Preproduction models of the R75 were powered by the 750 cc part valve engine, that was based on the R71 engine. However it was quickly found necessary to design an all-new OHV 750 cc engine unit for the R75 device. This OHV engine later became the basis for succeeding post-war twin BMW engines like the R51/3, R67 and R68.
The third side-car wheel was driven with an axle connected to the rear wheel of the motorcycle. We were holding fitted with a locking differential and selectable road and off-road products ratios through which all four and reverse gears functioned. This made the R75 highly manoeuvrable and capable of negotiating most floors. A few other 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 generally 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 Military, agreed upon standardization of parts for both machines, with a view of eventually developing 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 agreed that the produce of the R75 would cease once production reached 20,200 products, and after that point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, manufacturing 20,000 every year.
Since the target of 20,200 BMW R75's had not been reached, it remained in production before Eisenach stock was so terribly broken by Allied bombing that production ceased in 1944. A further 98 items were put together by the Soviets in 1946 as reparations.
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