When did the Campagnolo quit stamping the date on SR derailleurs? Or perhaps, I have the question backwards and should be asking it as one would for a NR rear derailleur. When did they start date stamping the derailleurs? What I'm trying to determine is the approximate year or years of a non-dated SR derailleur?
Thank you.
Cheers.
Tom
Tom Hayes
18585 Munn Road
Chagrin Falls, Ohio 44023
hayesbikes@nls.net
hayes@jcu.edu