BMW Motorrad Unveils Concept 6 Motorcycle With Inline SixCylinder

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

In 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 Army.

Preproduction models of the R75 were powered with a 750 cc aspect valve engine, which was predicated on the R71 engine motor. However it was quickly found essential to design an all-new OHV 750 cc engine unit for the R75 unit. 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 linked to the rear wheel of the motorcycle. These were equipped with a locking differential and selectable highway and off-road products ratios by which all and change gears worked. This made the R75 highly manoeuvrable and capable of negotiating most areas. Additional 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 Army, agreed upon standardization of parts for both machines, with a view of eventually making 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 arranged that the make 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, making 20,000 each year.

Since the concentrate on of 20,200 BMW R75's had not been reached, it continued to be in production before Eisenach manufacturer was so terribly broken by Allied bombing that development ceased in 1944. An additional 98 models were built by the Soviets in 1946 as reparations.

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