The front dynohub on my recently-acquired mid-1950s Raleigh Sports (thanks Matt!) has 90mm o.l.n. spacing.
Don't know if they're all like that, or if there are wider axles available for them, but I imagine (i don't own one) that French randonneur bikes would have 100mm fork spacing.
Maybe this difference is why they weren't commonly used?
Randy Dugan Van Nuys, CA USA
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From: ray green <greenjersey(AT)ntlworld.com>
Date: Fri, 22 Jun 2007 19:52:35 +0100
Subject: [CR]Why no dynohubs?
David Bean asks<Why didn't the French ever use Dynohubs on randonneuses?
Anglophobia?>
I don't recall ever seeing an English rider using a Dynohub on a Audax
event although Schmidt hub lighting is now popular, and rightly so.
Ray Green, Brighton, England