Friedl Münch was given a commission in 1966 to build a special for Jean Murit, a famous French former sidecar road-racer, who was then-President of the BMW Club of France and organiser of the Chamois Rally, a summertime motorcyclists' gathering at high altitude in the Alps.

[4] Münch used a 996 cc air-cooled NSU Motorenwerke engine having a chain-driven single overhead camshaft housed in a specially-built, brazed-up steel tube frame based on Norton Featherbed principles.

[2] In July 1966, Murit rode his new bike at the head of a procession from the Val d’Isère up to Col de l'Iseran, Europe's second-highest mountain pass.

[5] In 1966 he created the Mammut, installing an NSU 996 cc overhead camshaft, 4 cylinder automobile engine with 55 hp into a tubular loop frame of his own construction.

American motorcycle entrepreneur Floyd Clymer invested in the Münch brand from 1968, marketing the bike in US as Clymer-Münch Mammoth IV with the slogan "Built up to a standard, not down to a price".

[citation needed] The 2010 French film Mammuth follows Gérard Depardieu's character Serge Pilardosse on a journey through his past, riding a Münch "Mammut" 1200 TTS.