: [CR]Campy Record Derailleurs
>
> There are pretty big differences in the castings as the molds wear in
> use and are replaced. Most notable is the dimple texture in the
> shifters and in the diamond-shaped clamp of the Record front derailleur
> over the years. The shapes of the pivot pieces on the Gran Sport,
> Record and Nuovo Record rear derailleurs also vary quite a bit. I don't
> know how you would actually tell the year of manufacture from any of
> these subtile differences though...
>
Mold wear sounds reasonable as most of the differences don't seem to make much of a mechanical difference, on cosmetic such as the shape of the stop on the back side of the top pivot and the hole for the cable stop being slightly shorter on one.
David Goerndt