Originally Posted by
JohnDThompson
You've got nothing to lose in trying to cold-set it back into alignment. That's what I'd try first. If the tubes buckle or otherwise fail with cold-setting, then decide whether it's worthwhile to pursue tube replacement.
That bent seat stay is probably the easiest tube to replace on a frame, since they typically go on last...hey, that frame happens to be my size...
John, did you notice the little added "point" brazed just below the seat lug tip, right above the 531 decal? I wonder what that's all about? Maybe shine a light down the seatpost and see if it's hiding a hole or crack?
edit: looking again, that's the out of focus fork in the background, so that must be the shifter stop. I confused the dirty outline of the shifter clamp as a lug...time to check my prescription again.