Founder Friedel Münch developed the Mammut (German for “mammoth”) to be the fastest and most powerful motorcycle of its time. It uses an automobile engine borrowed from the NSU Prinz and a hand-built tube frame. With a top speed of 137 miles per hour, the Mammut offered stunning performance. Despite extensive use of magnesium, the bike weighed over 650 pounds, heavier than nearly every other sports bike at the time. Less than 500 Mammuts were built before production ended in 1975.