This paragraph reports on the launch of the Super Champion Super Mondial. It commends it for its simplicity - with a single pivot and a single spring.

(Source gallica.bnf.fr/ Bibliothèque nationale de France)

• Publisher: L'Officiel A.C.M.
• Country: France
• Date: October 1950
• Derailleur brands: Super Champion
• Derailleurs: some variant of the Super Champion Super Mondial