Yeah, sounds like the spoke tension has pulled it through. It can happen on older steel rims; they corrode and then the rim can't resist the tension anymore.|
Can happen on alloy rims through a combination of metal fatigue and impact.
Best get a new one.
#9320366, By MikeP The cycling thread
MikeP 2,346 posts
Seen 4 hours ago
Registered 12 years ago