Just my luck, get a new set of tires and ran over something in the road. It stuck in the tire, about 3/8 long and 3/16 dia. Pulled it out, air didn't leak. Of course it did leave a place in the tire where it once was. If it leaked, I would just replace the tire, but since it didn't leak, what would you do? It is a Bridgestone tire with about 2500 miles on them. Not sure whether to replace it or run it. It always seems to happen to the new tires, like windshields, drive a car for a long time with a cracked windshield, get a new one, and sure enough it will have a crack in it real soon.