Originally Posted by
pierce
steel frames are mostly repairable, although this may require replacing the cracked frame tube and re brazing or mig welding it
I think you may mean TIG welding there, MIG doesn't work well with thin-walled tubing.
Originally Posted by
pierce
Carbon fiber? eeeek!
Calfee offer a repair service for carbon fibre frames. I'm not sure how they do it though.