It has been 20 years since there has been an example of a tire going flat on the track. Heard a noise starting on the right in front, and although it didn't end suddenly, it did cease relatively quickly because the congress was nearby. Then, on the dokatka, we traveled 140 kilometers at a pace of 80 kilometers per hour. Regarding the extended warranty, you should not put any stock in it. I placed my order at VShinah and picked it up at Green Tire; however, neither of them were willing to repair or change the item.