I was inspecting and cleaning my 2013 Spec Roubaix frame while the wheels are off waiting for tires.
Inside the chainstay near the front I found a scratch that looked bad at first. I checked with a feeler gauge and it is only through the paint.
I bought the bike used a few years ago and have no idea what it went through before I got it but someone said it looked like he tried turning it into a gravel bike, which makes sense. He sold it to me to buy a gravel bike.
Could this have come from the rim rubbing the frame?