Paul de Vivie goes over to the dark side and considers the case for a multi-geared bicycle with a petrol engine to assist the rider. My French is not good enough for me to judge whether his apparent enthusiasm is genuine.

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

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• Publisher: T.C.F. Revue Mensuelle
• Country: France
• Date: November 1906
• Derailleur brands: de Vivie
• Derailleurs: none