I wonder if you guys can help with a few questions. I have a couple of early/mid 80's bikes I am restoring. Both Campag Super Record 1980's 52/42 front and 12 or 13 up to 21 max on the back. 5,6 & 7 speed, classic 80's Maillard, Regina etc.
As I am a bit older than I was, I was wondering about...