Thinking of switching one of my bikes to a compact chainset, currently Campag Veloce 39/53 with a 12-25 cassette. If I swap to a 50/34, do I really need a new front mech (or a medium cage rear mech for that matter), or will the standard mechs cope?
Received wisdom is that the standard mech works fine, but the compact one is a little smoother. Can't speak for the rear mech, but you're only asking it to wrap an extra few links of chain, so I'd try it and see.
I expect someone who's actually done this with Campag will be along soon. I've only done it on Shimano (taking a 52/42/30 set to 48/38/24).
Indeed. I actually wanted a 26T inner ring, but the LBS had run out. I'm using a 13-26 cassette, and a 25" bottom gear struck me as being a little overkill. Having said that, it came in handy in the alps and North Wales.