The Duopar had different eared washers that would allow the derailleur to be used with Campy or Huret hangers.
Ann Arbor, MI
> I believe that Huret manufactured a little adopter that allowed Huret
> derialleurs made for Huret dropouts to be used with Campagnolo style
> dropouts. Is this corrrect?
> If this is correct, does any have one of these they would be willing to
> John Taglia