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Is it a problem if there's a small bulge on the side of the tire?

1 Answers

StMalachi

07/30/25 6:29am

When a tire bulges, it indicates that the internal cord layers are damaged. Since cord layer damage is irreparable, a bulging tire should not continue to be used and must be replaced promptly to prevent the risk of a blowout. Causes of tire bulging: Tire bulging occurs when the internal cord layers are damaged, causing uncontrolled air pressure inside the tire. This results in uneven force distribution on the outer tire, with the areas under higher pressure protruding to form a bulge. This is a common type of tire wear. If not addressed promptly, the bulge may suddenly rupture due to accelerated rolling or excessive friction heat, leading to an explosion. Statistics show that the vast majority of tire blowouts are caused by bulges. Irreparable damage: Neither bulges nor sidewall damage can be repaired by patching. The cord layers in these areas are already broken, and patching merely involves applying a rubber piece inside, which cannot fully restore the cord layers. As a result, the tire will bulge again in the same spot after some time, or even blow out, posing significant safety hazards. Additionally, the sidewalls of tires are constantly undergoing deformation and recovery while driving, making patches prone to detachment. The best solution is to replace the tire promptly.

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