They are 116 mm for Campy, Cinelli, Duprat, Durax, Gnutti, Haubtmann, Magistroni, Nervar, Simplex, Solida, Stronglight, TA, Zeus and others per Sutherlands third edition. Among others I would add Schwinn Paramount and Superior, Favorit and TWF.
Who can tell me more about TWF which I presume is French and 1950's.
Joe Bender-Zanoni
Great Notch NJ
> Help! What is the correct BCD for Magistroni/Atala/Legnano/Olmo/Etcetera
3-arm cottered cranks?
>
> thanks.
>
> Aldo Ross
> Moron Inn Ohio