BMW K100 Motorcycle 1

The BMW R75 is a global Conflict II-era motorcycle and sidecar combination produced by the German company BMW.

In the 1930s BMW were producing a volume of popular and highly effective motorcycles. In 1938 development of the R75 started in reaction to a question from the German Military.

Preproduction types of the R75 were driven by a 750 cc aspect valve engine, that was predicated on the R71 engine motor. However it was quickly found essential to design an all-new OHV 750 cc engine motor for the R75 unit. This OHV engine motor later became the basis for subsequent post-war twin BMW engines like the R51/3, R67 and R68.

The 3rd side-car wheel was driven with an axle linked to the trunk wheel of the motorcycle. These were built in with a locking differential and selectable street and off-road gear ratios through which all four and reverse gears did the trick. This made the R75 highly manoeuvrable and capable 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 (designated the BW 43), in which a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. They also agreed that the produce of the R75 would stop once production come to 20,200 models, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, manufacturing 20,000 every year.

Since the focus on of 20,200 BMW R75's had not been reached, it continued to be in production before Eisenach manufacturer was so badly ruined by Allied bombing that development ceased in 1944. A further 98 models were constructed by the Soviets in 1946 as reparations.

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