Originally Posted by
khatfull
I'm trying to figure out what would period Shimano indexed shifting from about 1984 on...but would like the group info for 1980 on.
Thanks!
That really narrows it...
The 80s groups with index shifting (top to bottom) were:
Dura Ace
600EX / 600 Ultegra (tricolor)
Sante (some people place Sante higher than tricolor because of the price but that was definitely not the case; at best they were equal)
105
Exage/Motion
There were also non group parts and the level of each part differed. For example, Light Action was Exage level, where some shifters with 6xxx part numbers were 600-level.
Same with the non-index groups, but you got a lot of low level friction stuff in the early 80s like Eagle (at the Exage level)