In 1947, NSU claimed the German championship titles in the 600cc and 1000cc supercharged sidecar categories. A year later Wilhelm Herz became German champion on a 350cc supercharged NSU motorcycle. Heiner Fleischmann was German champion in 1950. In 1953 Werner Haas took two world championship titles, in the 125cc and 250cc classes; he also won the German championship titles twice in these classes.
NSU celebrated its greatest victory in the 1954 “Tourist Trophy” (TT) on the Isle of Man. The brand won the 125cc class, and crossed the line in places 1 to 4 in the 250cc class.
That same year Haas triumphed in the 250cc world championship, with Rupert Hollaus taking the equivalent title in the 125cc class. Two German championship titles also went to Haas, in the 125cc and 250cc classes. Top honours in the 350cc class handed Hermann Paul Müller the German championship title. NSU contested 24 races and won them all. In 1955 Müller became the world’s first privateer to win a world championship, on an NSU Sportmax in the 250cc class. But the brand did not only celebrate success in circuit racing: from 1955 to 1967, NSU secured 23 German off-road championship titles.
World speed records, 1951 to 1956
On April 12, 1951, NSU motorcycles made speed record attempts on the Munich-Ingolstadt motorway for the first time since the Second World War. Riding a streamlined NSU motorcycle, Wilhelm Herz reached 279.5 km/h and broke the record set 14 years previously by Ernst Jakob Henne on BMW. In 1956, on the Bonneville Salt Flats in the US State of Utah, Wilhelm Herz broke the absolute world record for motorcycles with a speed of 339 km/h. In 1956, NSU held every possible motorcycle world speed record.