15_07_2016_BMW_R75_Ironwood_Custom_Motorcycles_02

15_07_2016_BMW_R75_Ironwood_Custom_Motorcycles_02

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

In the 1930s BMW were producing a variety of popular and highly effective motorcycles. In 1938 development of the R75 were only available in respond to a get from the German Army.

Preproduction types of the R75 were driven by a 750 cc part valve engine, which 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 product. This OHV engine later became the basis for following post-war twin BMW engines like the R51/3, R67 and R68.

15_07_2016_BMW_R75_Ironwood_Custom_Motorcycles_02

The third side-car wheel was driven with an axle connected to the rear wheel of the motorcycle. These were installed with a locking differential and selectable street and off-road gear ratios by which all and change gears worked. This made the R75 highly manoeuvrable and with the capacity of negotiating most surfaces. Additional 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 greatly employed by the Wehrmacht in Russia and North Africa, though over time 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 after standardization of parts for both machines, with a view of eventually building 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. They also arranged that the manufacture of the R75 would stop once production reached 20,200 products, and from then on point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, making 20,000 every year.

Since the goal of 20,200 BMW R75's was not reached, it continued to be in production until the Eisenach factory was so badly damaged by Allied bombing that development ceased in 1944. An additional 98 systems were constructed by the Soviets in 1946 as reparations.

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