Approximate hierarchy of road RD groups, pre-1990's, dates given to show cutoff points. I've omitted groups that I do not know entirely as to where they fit. Some of these are in the same general group quality, but are later replacements for previous groups in the same quality range.

Correct me if I am wrong on some of the end dates of these groups - I'm not entirely sure about SR or NR.

Top-end:
C-Record (1984-1990)
Super Record (1976-1985)
Nuovo Record (1967-1985)
Record (1965-197?)
Gran Sport (1951-1973)
----------------------
Mid-range:
Victory/Victory S3 (1985-1988/9?)
Nuovo Gran Sport (1974-1985)
----------------------
Low-end:
Triomphe/Triomphe S3 (1985-1988/9?)
990 (1980-1985?)
980 (1980-1985)

And if I may add my biased opinion, the Victory RD's are my favorite, followed by second-generation SR. Gran Sport, 990 and 980 do not have any specific brakesets. Record and Nuovo Record share the same brakeset and crankset (early cranksets 151bcd, later 144bcd). Nuovo Gran Sport shares RD physical geometry (not appearance) with Nuovo Record, 990 shares geometry w/Triomphe, Victory shares geometry with SR and C-Record with exception to top pivots.

-Kurt