Got 4 new Bridgestone Ecopia tires today. They make a loud thumping sound, especially on turns. I am wondering if they are not seated correctly, or maybe there is a flat spot on one of the tires. I don't think it is balancing, since it happens at slow and fast speeds. I double checked the torque of the lug nuts, which is fine. There were no noises before the new tires were put on. Any ideas?
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