Who knows C-record well? I have a C-record crank purchased in 1986, I think. Now I'm in an argument with a friend over whether it's "really" a C-record, and if his mid-90s part, which he calls a C-record, really is one.

When did it start? I think I got this one from CampyOnly, 1986.

Were the C-record cranks the first to have the four-pin plus arm design?

Where can I find the key to teh date codes for these more modern gruppos?

Road Fan