1939 DKW NZ 500
DKW NZ 500 is well known in Spain, because widely used by police. The engine is two-cylinder two-stroke with the volume of 500 cc.
In 1916, Danish engineer Jørgen Skafte Rasmussen founded a factory in Zschopau, Saxony, Germany, to produce steam fittings. That year he attempted to produce a steam-driven car, called the DKW. Although unsuccessful, he made a two-stroke toy engine in 1919, called Des Knaben Wunsch – "the boy's desire". He put a slightly modified version of this engine into a motorcycle and called it Das Kleine Wunder – "the little marvel". This was the beginning of the DKW brand: by the 1930s, DKW was the world's largest motorcycle manufacturer.
During the late 1920s and 1930s, DKW was the world's largest motorcycle manufacturer. In 1931, Ing Zoller started building split-singles and this concept made DKW the dominant racing motorcycle in the Lightweight and Junior classes between the wars. This included off road events like the International Six Days Trial where the marque scored some considerable inter-war year successes alongside Bavarian Motor Works. At the same time, the company also had some success with super-charged racing motorcycles which because of their light weight were particularly successful in the ISDT
The motorcycle branch produced famous models such as the RT 125 pre- and post-World War II, and after the war with production at the original factory in GDR becoming MZ it made 175, 250 and 350 models. As war reparations, the design drawings of the RT125 were given to Harley-Davidson in the US and BSA in the UK. The Harley-Davidson version was known as the Hummer, while BSA used them for the Bantam. IFA and later MZ models continued in production until the 1990s, when economics brought production of the two stroke to an end. Other manufacturers copied the DKW design, officially or otherwise. This can be seen in the similarity of many small two-stroke motorcycles from the 1950s, including from Yamaha, Voskhod, Maserati, and Polish WSK.
In 1916, Danish engineer Jørgen Skafte Rasmussen founded a factory in Zschopau, Saxony, Germany, to produce steam fittings. That year he attempted to produce a steam-driven car, called the DKW. Although unsuccessful, he made a two-stroke toy engine in 1919, called Des Knaben Wunsch – "the boy's desire". He put a slightly modified version of this engine into a motorcycle and called it Das Kleine Wunder – "the little marvel". This was the beginning of the DKW brand: by the 1930s, DKW was the world's largest motorcycle manufacturer.
During the late 1920s and 1930s, DKW was the world's largest motorcycle manufacturer. In 1931, Ing Zoller started building split-singles and this concept made DKW the dominant racing motorcycle in the Lightweight and Junior classes between the wars. This included off road events like the International Six Days Trial where the marque scored some considerable inter-war year successes alongside Bavarian Motor Works. At the same time, the company also had some success with super-charged racing motorcycles which because of their light weight were particularly successful in the ISDT
The motorcycle branch produced famous models such as the RT 125 pre- and post-World War II, and after the war with production at the original factory in GDR becoming MZ it made 175, 250 and 350 models. As war reparations, the design drawings of the RT125 were given to Harley-Davidson in the US and BSA in the UK. The Harley-Davidson version was known as the Hummer, while BSA used them for the Bantam. IFA and later MZ models continued in production until the 1990s, when economics brought production of the two stroke to an end. Other manufacturers copied the DKW design, officially or otherwise. This can be seen in the similarity of many small two-stroke motorcycles from the 1950s, including from Yamaha, Voskhod, Maserati, and Polish WSK.
