Originally Posted by
bikerosity57
Looks like a crack. Strange place for one though. Need a closer picture to tell for sure. It could be repaired, but you'd have to paint the frame.
(+1) to everything bikerosity says. If it is a crack it's a relatively simple brazing job, but that will destroy the paint in that area of the frame - and IMHO it would be difficult to match the finish without completely refinishing the frame. Sorry!