i had a bubble(egg) in my tire on a 93 taurus.. could not feel it at all.. but when the tire was removed from the car you could see it very well when rolling the tire in the driveway... also on a 96 contour(original firestone tires, still pretty new at the time. lots of thread) the tires would click when rotating on the car..... pulled tire off car and then off the rim.. it had a bad belt in it.. but you could only see it from the inside of the tire........
