If that's the case you'll *really* hate to see what I did to my 1967 Carlton and early-1970s Peugeot PX-8! Of course, in keeping with my goal of "ridding the world of derailleurs, one bicycle at a time", I went in the opposite direction and put internal gear hubs on bikes that formerly had derailleurs.

Obviously, when I'm finished with this project I'll update everyone here. Unfortunately, I'm crazy busy of late so it might be a while.