Here I will collect some information about Classic Dura-Ace:
From http://www.classicrendezvous.com/:
Year of
introduction | SHIMANO TIMELINE | 1921 | Shozaburo Shimano establishes Shimano Iron Works and begins production of the original Shimano freewheel. | 1931 | First export of the Shimano freewheel | 1940 | Company name changed to Shimano Iron Works Co., Ltd. | 1956 | First Shimano derailleur | 1957 | First Shimano 3-speed internally geared rear hub | 1965 | Shimano American Corp. established in NY | 1967 | "Sky-Lark" derailleur and "Servo-Pantograph" mechanism | 1971 | 1st Gen Dura Acewi/Crane derailleur (7100 series) | | | 1973 | | “600” introduced | | 1976 | Dura Ace black
anodized & Track | 6100 series | | 1977 | New Dura Ace
7100 series
& Dura Ace 10 | | | 1978 | EX
7200 series | 600 EX Arabesque
6200 series | | 1981 | AX
7300 series | AX 600
6300 series | | 1982 | | New 600 EX
6207 series | | Post Classic Rendezvous time line | 1984 | 7400 series
6 speed SIS | | | 1985 | Track
7600 series | | | 1987 | 7400 series
7 speed | | Sante
5000 series | 1988 | 7400 series
8 speed | Ultegra
6400 series | | 1990 | 7400 series
STI shifting | | |
Here is som of my Dura-Ace components:
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