What Causes Small Bulges on the Side of Car Tires?

3 Answers
McBrody
07/29/25 4:05am
Here are the possible reasons for small bulges on the side of tires: 1. During tire usage, frequent friction with hard objects, prolonged overloading of the vehicle, or long-term use under non-standard tire pressure can all lead to bulging. 2. If bulges appear in multiple areas of the tire, it is largely due to quality issues. Defective products caused by manufacturing defects can also result in tire bulges. Problems in the raw materials or manufacturing process, including insufficient rubber composition, can lead to inadequate hardness and thickness of the tire sidewall, causing frequent bulging. 3. Impact on the tire, such as suddenly hitting a curb, quickly driving over a speed bump, or running over a large pothole, can cause severe compression. The internal air pressure increases, and the weak sidewall may bulge outward. 4. Poor road conditions, such as driving at high speed over rocky or rough roads, especially hard and uneven surfaces, or protruding manhole covers, can significantly impact the tire. Inconspicuous but highly damaging road irregularities can also be a major cause of bulges. 5. During vehicle use, avoid parking the car tilted against curbs to prevent sharp edges from puncturing or cutting the tire sidewall. When driving over speed bumps, slow down to minimize wear and thinning of the tire sidewall, which can lead to bulges. When purchasing or replacing tires, buy from authorized dealers to ensure quality reliability.
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NolanLynn
08/12/25 3:49pm
The other day I noticed a small bulge on the sidewall of my tire, which scared me into stopping immediately to check. I remember hitting a pothole at speed on an uneven road, and the tire cords got damaged, resulting in this issue. Had to replace it with a new one, as driving with it on highways would be too risky for a potential blowout. I drove straight to the repair shop and got a same-model replacement. Cost me a bit, but safety is worth every penny. My advice: always slow down when driving over rough patches and avoid curbs to spare your tires the stress. Regularly check tire pressure and tread wear. Like in my case, addressing it promptly prevented a major accident. Good habits save both hassle and money.
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DeKayden
10/02/25 8:33am
If there's a bulge on the side of the tire, it needs immediate attention. It might be caused by hitting a curb or a heavy impact, which can break the cords and make it irreparable, posing a high risk. As someone who often drives long distances, I've encountered this issue before: when the car wobbles, carefully feeling the wheel can help detect it. The solution is simple: drive slowly to a repair shop and replace the tire—avoid highways or steep slopes. For prevention, regularly check tire pressure to ensure it's neither too low nor too high, inspect tires monthly, and avoid sudden turns or stops. These measures can extend tire life and ensure safe driving.
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