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DKW D2-492-52-12
Photo ou archives : F-M. Dumas

Capacity : 175
Model :
Production : 1929 -
Category : (R) Street Bike


175cc - 1929

World's biggest motorcycle manufacturer

The two-stroke was extremely popular in Germany in the late 1920s. DKW, which by then had become the world's biggest motorcycle manufacturer, built 300 units a day, in addition to some 30 750 and 1000cc cyclecars. The factory also built a large number of small engines for the agricultural industry, all powered by two-stroke engines. DKW also supplied engines to other marques, though not to the same extent as the contemporary British manufacturers.

Privileged Class

Motorcycles of less than 200cc were a privileged tax-exempt class in Germany. With its 175 and 200cc models, it was this category that was largely served by DKW during this period in time.

Forced-Air Cooling

The unit-constructed 175cc engine fitted to the model illustrated was notable for its forced-air cooling by vanes on the flywheel magneto, which later doubled as a turbine. This simple and efficient solution was subsequently adopted by many manufacturers. In contrast, for the more up-market models in its range – 500 sports twin and 175cc with pumping piston – DKW used liquid cooling. Basically the same in concept as the normally-aspirated 175 touring model, the supercharged 175 was capable of exceeding 70 mph. In 1929, DKW abandoned its classic tubular frames and adopted pressed-steel construction, of which this 175 was one of the earliest examples.


Engine: 175cc (59x64mm) forced-air cooled single-cylinder

Valves: two-stroke

Fuel System: carburetor

Transmission: 2-speed, dry clutch; chain final drive

Suspension: girder forks (front); rigid (rear)

Brakes: 5.5 inch drum (front & rear)

Wheels: 26x2.85 inch wire (front & rear)

Weight: 187 lb

Maximum Speed: 47 mph

A classic German motorcycle of its day, the popular little "Deek" 175 was built by the tens of thousands.

Motorcycle encyclopedia Moto Passion, realised by François-Marie Dumas, include almost 2000 photos presented with an exhaustive history of the motorcycles exhibited.

This unique collection has been realised with the participation of many specialists. With many thanks in particular to Yves Campion, Michael Dregni, Didier Ganneau, Jean Goyard, Helmut Krackowizer, Michel Montange, Christian Rey, Bernard Salvat, Mick Woollett, etc

One can order here

  • Original cards on paper (in french)
  • High resolution scans or original documents presented and signed with my name.

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François-Marie Dumas

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