Tire Bubble

Tires with this kind of damage should be replaced as quickly as possible. The bubble will only get worse as the sidewall delaminates, and eventually the tire will lose the battle. Unfortunately, bubbles on the suspension-facing side of the tire, as with this one, cannot easily be seen. If you feel that an impact could have "pinched" the tire sidewall between the obstruction and your rim, be sure to check both sides of the tire for signs of damage.