I have two run flat tires that were put on new on my Lexus SC430 at the dealer before I bought it. I would like to sell them. We replaced them with a set of 4 tires. They have approximately 500 miles on them. They are Bridgestone Potenza RE040. 245/40 ZR18. Dealer paid $688 plus mounting. Asking $400.00 plus shipping or picked up in Charlotte NC.