Adler 1902 moto was peroy successful model with different characteristics to meet the requirements of the time. Cars of the 1930s included the Adler Autobahn, Triumpf Junior and the 2.5 liter Glaeser bodied Diplomat. After World War II production resumed in 1949 with a 98cc two stroke motorcycle, followed by improved 147cc, 123cc, 247cc and 195cc designs.

Soon the touring Adler MB250 was joined by the sporting 250 S, then by a racing version, the 250 RS with twin carburetors and swinging fork rear suspension instead of plungers. The Adler 250 RS motorcycle of 1954, still air cooled, developed 26 hp @ 7500 rpm, weighted 216 lb and was capable of more than 105 mph. Beginning in 1954, rider Hellmut Hallmeier perfected a water cooled 250 RS, whose highly successful racing career continued into the sixties.

Adler motard, one of the early German marks, built until 1907 even motorcycles. Then you Motorrad bay temporary. This condition lasted until 1949. With the Adler M100 eagles there after the war, a successful new start. The Adler MB200, with the twin two-strokes, closed just to outperform competitors.