Originally Posted by
rpenmanparker
The truing process at the LBS may have caused the failure. If a ham-fisted mechanic just cranked down on the one spoke and took it to stupid, high tension, that could have done it.
Maybe, but if it was just one spoke, over tightening would have caused the rim to be out of true. If it was several in a group it would have flat spotted. Probably a pot hole cause a fracture and truing may have helped the splitting process along.