Originally Posted by Andrew R Stewart

I don't think I would say that Shimano dropouts are any worse that the Campy 1010s that had a well known history of occasional breakage, I've seen far more Campys broken.

The broken Campys I have seen usually crack at the chainstay tab, just after the stay end where the heat would be concentrated and sometimes on the web between the two stays. But so far from the brazing heat like these two Shimano show have me wonder about if getting a der tangled up in the spokes and bending the piss out of the dropout happened and the crack happened during the realigning effort. Andy