campy front derailleur

77domer
77domer Posts: 6
edited July 2018 in Workshop
I have a 2011 colnago extreme geo that I am upgrading the groupo on. I previously had 10 spd record. I have tried a potenza 11 speed which does not fit in the hangar, the previous 10 speed does not fit right. Bought a 2014 chorus (FD11-CH2B) which is better but the spring touches the downtube. Anyone know which derailleur will fit? The rest of the group is Potenza. Thanks