I was mounting a new tube and tire to an old wheel and the tube popped while inflating it. It popped at 110psi, 5psi short of the recommended 115psi for the tire. At around 100psi the tire beam was nearly set, the only holdout was close to where it popped. As I pumped it to 110psi the sidewall started bulging and I saw the bead coming off the wheel. I tried to deflate it, but couldn’t do it fast enough and it popped.
I’ve inflated many tires before and never had this happen, but this was my first time mounting new tires. They are also foldable, so more flexible which I feel like contributed to the issue?
Is there anything I should do differently for new tires? And some rubber along the edge of the tire bead tore off exposing the hard part of the bead below, is that a problem?
by thegiantgummybear
2 Comments
No one is going to be able to tell you why. I suspect you could work In the manufacturing facility and not be able to say why they fail. You got a defective tube. You can try to return it if a few bucks is worth it.
You failed to fully seat the tire bead while inflating. The tube squeezed between the rim and the tire and then the extremely high pressure I. The tube forced it out of the space and eventually ripped the tube open. It exploded.
Most likely valve got in the way of the tire bead.
Go get a new tube and install it.
Then, fully seat the bead prior to adding air.
Add air slowly and keep an eye on the bead. Make sure it’s fully seated.
If not seated, deflate the tube and try to get the problem area reseated.
Re-inflate and repeat.
Only go to three-figure pressures until AFTER you’re sure the bead is set all the way around the rim on both sides.