I removed the tires from my BBS today to let them shine sand, because they really have their best years behind them.

Have you seen anything like this before?
You know, when original rims were there, it would be so bad. don't expect...
Or could that be if you kiss a curb frontally or jump out of it?
In any case, I know the reason why this rim always gave way to the air.

I didn't find a crack on two others.
I can throw that rim away now, can't I?