Paul de Vivie yet again surveys the bicycle shows highlighting anything that catches his interest. Singled out for special praise this year is the Boizot concern - for offering oval chainrings and a five speed derailleur system.

It’s strangely comforting that oval chainwheels were already being periodically ‘invented’ and then forgotten as early as 1913. Like Morris Dancing, it’s a quaint tradition well worth maintaining.

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

• Publisher: T.C.F. Revue Mensuelle
• Country: France
• Date: March 1913
• Derailleur brands: Boizot, de Vivie, Fichtel & Sachs, Loubeyre, Hirondelle, Peugeot, Prével d’Arlay, Sturmey-Archer, Terrot, Whippet
• Derailleurs: Boizot 5 Speed, Terrot Modèle H, Terrot Modèle HT, Terrot Numéro 1