Campy Lessons Needed
The situation is that I have some Campy Chorus 9 speed ergos and front derailleur, but I need a rear derailleur for the group. As I search that big auction site, I see a couple of iterations of 9 speed Chorus RDs. One has the Campagnolo script as the prominent logo and one has Chorus printed as the prominent logo. My shifters have Chorus printed on the lever that matches the latter of the two aforementioned RDs.
Will any 9 speed Campy RD work with the Chorus Ergos, or do I need a specific era? Also, I don't mind mismatching if the level goes up, so what about Record 9 speed rears?
What about 10 speed RDs? Will they work with the 9 speed shifters and 9 speed cassette?
Thanks!