06-09-2016, 03:28 PM
I've owned this bike (1977 Schwinn Le Tour III) for about a month. For all I know, this has been there the entire time and I didn't notice it. It looks like someone took a tiny saw or something and cut into the lug. It looks to perfect to be a crack. I'm a novice when it comes to bike repair and I'm looking to learn what this might be. Is it a repair to a crack? Should I be looking for a new frame?