I met Fried Munch, creator of the Munch Mammoth, at Daytona. One of my extended circle of biking acquaintances was a good friend of his, and used to have him stay at his home when Friedl came to the USA.
In the back pages of the late 1960's/early 1970's bike mags, you could see a 1-column inch ad w/a tiny pic for the Munch Mammoth, which used the "space-age Elektron alloy!" for many of the bike castings. They were hand-built and cost 3X what say a SOHC Honda 750 cost. Because of that, they never got much exposure. The bike was under continuous refinement and was built for many years. I have some pics of Friedl at Daytona when I ran-into my acquaintance there. 'Paco' was an experienced mechanic, a Munch expert, and unfortunately neither Friedl nor Paco are with us now.
The 1960's NSU TTS car gave-up its engine to become the heart of the Munch Mammoth. NSU was known for engineering innovation, and had developed a small (for a car) air-coed inline-4 which Munch adopted for motorcycle use, substantially-increasing its output. Mechanical fuel-injection was one of the many innovations Munch used to increase its output.
NSU was also one of the first cars to use a Wankel rotary engine. The first commercially-available rotary motorcycle was a Hercules/ DKW. A Dutch company brought out a real road-burner in the early 1970's, the rotary-engine Van Veen OCR, which is surely one of the rarest of the production bikes, right-up there with the Hesketh Venom Vampire. The Hesketh was a creation of a young member of the British House of Lords who burned through his family inheritance by sponsoring James 'Shunt' Hunt in automobile Formula 1 racing in the 1970's (be-sure to see the new movie Rush, about the 1976 F1 season where James Hunt battled Niki Lauda). Lord Hesketh dabbled in many areas, including building a 1000 cc DOHC V-twin sportbike, the F1 racing, and even rock & roll, one of the records he cut was entitled, "Lord Hesketh's Heavy Friends," and is something of a collectible rarity today.
I am going-off-of some 50 year-old memories here, so w/o googling, this is my account of facts as-best I can recall.
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