New Bridgestone Tires Found To Be Slightly Oblong

A vehicle owner discovered shaking after installing new tires, revealing potential manufacturing defects.

Updated on Sept. 19, 2026 in Car Maintenance

New Bridgestone Tires Found To Be Slightly Oblong

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Do you trust that tire shops accurately diagnose issues with new, defective tires?

Anna Dahl reported that her vehicle experienced significant shaking following the installation of a new set of Bridgestone tires. A mechanic later determined that all four tires in the set were slightly oblong, leading to a necessary replacement of the entire set.

Why it matters

Tires that are not perfectly round can cause vibration and handling issues that compromise vehicle safety and performance. Identifying these defects quickly is important because manufacturing issues or improper mounting can lead to uneven wear and unsafe road conditions.

A technician confirmed that four Bridgestone tires were slightly oblong following installation. The vehicle now operates smoothly after the tires were replaced.

The players

Anna Dahl

The car owner who identified shaking after having a new set of tires installed.

Bridgestone

A global manufacturer of automotive tires that provides warranties against defects.

The details

Vibrations and shaking often occur when a tire is not perfectly round, which can result from flaws during the manufacturing process or damage during the mounting process. If a vehicle shakes after new tires are installed, a professional mechanic can perform a balance and roundness inspection to confirm if the tires are defective. While some minor flat spots on tires can resolve through regular driving, a tire that is physically oblong requires a warranty replacement through the manufacturer.

Timeline

  1. September 2026: The report regarding the tire issue was published.

The Home Front

Most tire experts recommend replacing tires every 50,000 miles or six years to ensure safety and consistent performance. When new tires exhibit issues, it disrupts this expected lifecycle and necessitates immediate professional diagnostic intervention.

If you notice persistent shaking after new tires are installed, return to the shop immediately for a professional diagnostic check. Verify your purchase receipt and contact the manufacturer to see if the defect is covered under your standard warranty against manufacturing faults.

The takeaway

Vehicle vibrations following a new tire installation are not normal and should be investigated by a licensed mechanic. Keep your original tire installation records and warranty documentation in your vehicle glovebox to simplify any future claims process if a defect is identified.

Further reading

Learn more about identifying tire issues in our Car Maintenance guide.

Live Poll

Do you trust that tire shops accurately diagnose issues with new, defective tires?