Tire Failure

[mrekim]

I have these photos of a couple of different tire problems. I'm just offering them up in hopes they will help people when inspecting their tires as part of prepping for the season:

This can happen on the inside or the outside. Sometimes you can feel the bubble forming before you can see it.:





The tire guy told me this was probably a broken belt. See how the radial tire tread on the right is round vs the ok one on the left that is flat. This was discovered when looking for bubbles. I could feel very small "ripples" in the side of the tire. The ripples were too small to catch from just looking.

[artguys]

The first is what is called a ply separation...at a high stress area(the Crown) that transition area between body plies and belts. Any separation can occur for various reasons...scrub a curb, a improper repairs, over flex form under-inflation, bead damage from R&Rs,impacts breaks but rarely nowadays from Mfg defects.

In modern terms there is no such thing as a slipped belt, which could only have happened before the curing process as it was being loaded into the matrice. Those being the old clamshell molds/matrices for which now everyone is using the segmentated molds.

The second would go down as a tread separation...here the same rules apply with a caveat...this could be all of the above and or a manufacturing or material issue.

[BarneyS]

Good thread and pictures! 🙂

You will probably be interested in this thread by member JBarca that details, with pictures like you did, his experience with somewhat the same tire failure.
Barney

[fla-gypsy]

The pic of the broken/separated belt is a good one. I had never encountered it before last year when my truck tire did this. If this happens it will not ride well at all and you will know something is wrong. I stopped twice before I noticed the crown in the tire tread.

[W_E_BGood]

Thanks for the info and good pix, mrekim! Very useful.

[Shadow_Catcher]

Have you reported them to the NHTSA https://www-odi.nhtsa.dot.gov/ivoq

[Tachdriver]

Nice post and good time for it. I often forget that the inside of a tire deserves inspection as much as the outside.


Be a great sticky if a post was created to show all the problems can have...maybe I will do some research and follow up.

Great reminder!