BMW Motorcycle

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

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

Preproduction models of the R75 were driven by way of a 750 cc area valve engine, that was predicated on the R71 engine motor. However it was quickly found necessary to design an all-new OHV 750 cc engine for the R75 device. This OHV engine 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 fixed with a locking differential and selectable road and off-road products ratios by which all and reverse gears proved helpful. 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 rival the Z?ndapp KS 750 were both broadly used 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 Military, 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. They also decided that the manufacture of the R75 would stop once production reached 20,200 units, and after that point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, developing 20,000 every year.

Since the concentrate on of 20,200 BMW R75's had not been reached, it remained in production before Eisenach stock was so badly damaged by Allied bombing that production ceased in 1944. An additional 98 items were assembled by the Soviets in 1946 as reparations.

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