Originally Posted by
lotek
Those look to me like Crankset that would have come with Super Record Gruppo.
same crankarms as Nuovo Record but with lighter (single spider?) chainrings.
For the record (no pun intended) Croce d'Aune was a mix of Corsa Record and Chorus parts with
some group specific items (i.e. rear derailleur ).
Marty
at the expense of being called an over attentive weenie, I searched the pile'o'catalogs this morning for the actual differences...looks like the rear derailleur and the delta brakes are the biggest differences. May be, depending on your interpretation of the ad copy, that the internals on the pedals differ from the C-Record pedals. May be that the headset is unique (they stressed the SELFORM capabilities of the headset, which I have always thought was a Dura Ace buzzword). Campy tried to make out that the cranks were unique; they look just like Chorus with Record one-bolt extractors, to me.
Back on topic, the fluteless arms first show, I think, with the 50th group in 1983. They had some meaningless garbledegoop scratched on the outside, and some other little meaningless blingies, otherwise they are just like the later super record cranks. I have read, and I dunno where, that Campy changed the design of the spiders with this last release of the arms, to alleviate the stress fracture problem. These things don't show up in any of the catalogs that I have, btw.
alwys yrs in overly-detailed mnutea...