Hello, I'm also in the same boat as original poster, looking for a 31.8 front derailleur for a 52 triple front with 8 speed cassette in rear. The original FD is a 26.8, so I can't use that. I tried to PM both Retrogrouch and Hillrider, but I need 50 posts to do that, and don't have that many yet. If anyone has an old 31.8 FD or a braze-on that I could use with an adaptor, I would greatly appreciate it!