46/33 chainrings on Campy 10 speed?

[Mark McM]

Originally Posted by cgolvin

The only potential problem I can imagine is if the frame has a braze-on for the front derailleur. I believe some people have had issues with the FD being low enough for a 46, even resorting to a file. The 29 should not be a problem for a short cage RD.

This is a good point. Modern frames are designed for compact cranks, and have the braze-on lower, but classic era frames will probably be designed for "standard" size cranks, and have the braze-on mounted higher. There are ways to deal with this, including adapters to lower a derailleur on a braze-on tab.