Originally Posted by
ShinyBiker
I was really surprised to see that my rim had a warp or bulge right where the blowout ocurred. Do I have a cheap rim? This was an old 26" Fuji MTB.
Old rims get thin in the walls from braking and will eventually start to crack or separate; it's possible your rim started to fail before the blowout and the blowout put it over the top.
You'll need a new rim no matter what, but failure of a well-used rim doesn't mean you have to go with something extra beefy next time.