Originally Posted by JohnDThompson

There's nothing wrong with your SR front derailleur; it's just not designed to work with pre-CPSC cranks. As I have a number of vintage cranks that need the pre-CSPC version, I'm reluctant part with any usable front derailleurs. Other front derailleurs that will work include Zeus Criterium, 1st edition Dura-Ace, SunTour Compe, SL, or 1st edition Cyclone, and Simplex Super LJ, among others.