Ive only had the tyres for 1 week. As soon as i purchased them i noticed the problem. ive been back twice since and both times the wheel balancing did not work. They decided the tyre was faulty because they balanced it,took it off the machine and put it back on which then showed it wasnt balanced!! So they are assuming the tyre is faulty for that reason. I would like them to refund me as they are the ones that sold me the tyre therefore a contract was formed. The tracking on the vehicle is fine. I think the tyres are faulty as did not have this problem with my previous ones.