I posted this thread over in C&V. It deals with the use of frame blocks to repair a crumpled top tube.





The repair seems successful for the most part. The crumpled areas are round save for a dent remaining. The frame block can now be placed around the TT with no gaps showing between the two halves of the block. For the frame repair to be complete (of course the dent would have to be filled), the frame would need to be put on a frame tool similar to a Park HTS-1. Fortunately, I guess, the bend in the TT and DT is gentle and not the usual major bump that one sees in a head on collision.

My question: Assuming the head tube can be straightened and if done correctly, is this frame safe to ride. Or has the crumpling of the TT compromised the tubing integrity that it might fail? I would much rather refinish the TT than redo the whole frame, but the latter is an option if it means I won't get a nasty surprise.

Thanks