Hi all, I'm sure this has been covered before, if not here then on the web somewhere, but I just can't seem to find the information I need.
I recently build up an older steel frame with new Campy Record 10 speed (well, 20 speed really, but you know what I mean). I took it out for it's first ride this weekend, and I would periodically get some kind of chain skip type of thing happening (not exactly sure what to call it). It happened primarily when I was in the small chainring, and on of the outer cogs (39-12/13), and became annoying when I was out of the saddle climbing.
When spinning this gear in the workstand it seems to be fine, but I wondered if this gear combination was less than optimal (i.e. too much cross-chainline), since the chain runs pretty close to the 53 tooth outer chainring in this gear. Could this be the case, or should this gear combination work? If not, could it be that I don't have the rear derailleur set up 100%? I'm just looking for things that I can do to help me diagnose this problem, so I appreciate all opinions on this.