Originally Posted by
Mushrooom
Or maybe I'm just dead wrong and don't know what to do about it.
That's a good mindset and I hope you're not wrong.
The image you shared that looks the most like yours (to me) is this one:
I suppose what makes me worries is that the center of the tube does not appear to follow a straight line. As the top tube was "shaped" into an oval towards the end, I would assume the center of the tube would remain constant unless the ovalized end was not meant to be flared evenly, and then we have the rise and dip.
The only thing I might look at is checking the head tube angle in relation to the top tube and downtube. If those angles are off by a few degrees or more, then the likelihood of a past collision jumps.
Or just say eff it and ride the darn thing
