Potholes are a bigger threat than most drivers realize — and the damage they cause often can't be seen from the outside. Knowing what to look for after a hit can prevent a small problem from becoming a dangerous one.
When a tire strikes a pothole at speed, the impact forces the tire sidewall to compress sharply against the wheel rim. Visible damage is the easiest to identify — look for a sidewall bulge, which indicates the inner liner has ruptured and air is pushing into the outer rubber layers, or a puncture or gash in the tread. But hidden damage is just as serious and harder to detect. The internal steel belts or fabric cords can shear or separate without leaving any mark on the outside of the tire, creating a structural weakness that can fail without warning at highway speed.
After any significant pothole strike, inspect all four tires carefully for bulges, cuts, and unusual changes in sidewall profile. If you see a bulge of any size, the tire needs professional evaluation immediately — it is not safe to continue driving on it.
The tire isn't the only victim. Aluminum and steel wheels can bend or crack from pothole impacts, sometimes subtly enough that the damage isn't obvious to the naked eye. A bent rim can allow air to escape slowly from around the bead seal, cause vibrations, and compromise handling. Pothole hits can also knock your wheel alignment out of spec in a single strike — if your vehicle pulls to one side or the steering wheel no longer centers easily after hitting a pothole, have the alignment checked before driving many more miles. Suspension components including tie rods, control arm bushings, and struts are also vulnerable to sudden impact stress.
The best protection against pothole damage is attentive driving. Scan the road ahead for pavement irregularities, maintain a safe following distance so you have time to react, and reduce speed in areas with known poor road conditions. Keeping your tires properly inflated is the single most effective way to reduce vulnerability — an underinflated tire has far less structural support and compresses much more on impact, increasing the chance of rim contact and sidewall damage. After any hit that felt significant, have a technician inspect both the tire and the wheel for internal damage even if nothing looks wrong from the outside.
