After the war he returned to motorcycle racing, winning the 1947 and 1948 German 250cc titles on DKW. In 1955, he won the 250cc world championship riding an NSU Sportmax. He also set quite a number of world speed records in five classes over six distances for NSU on the Bonneville salt flats in 1956. To this day he remains the oldest person to win a Grand Prix Motorcycle world championship, at the age of 46.
