Thanks for your in-depth analysis. You are definitely right about the quality of the seat stay brazing - my Motobecane LeChampion is far more "polished". In fact, the mystery frame seems t ...
I picked up a frame last Friday and have a few clues as to ID. It is a French frame (French threads on HS and BB, tubing is French dimensions) and it takes a 24 mm seat post. However, it has been re ...