Adler Motorcycles Germany 1902-58
Adler was another company that started off as a bicycle company. As internal combustion engines became popular they transitioned to motorcycles. Most Adler models were simply transportation until the 50’s and 60’s when they had the Adler Special and Renn Sport (RS) 250. The RS250 had a top speed of 120 mph and resembled a Cafe Racer.