I'm going through my second set of tires, (41K)not satisfied with the dealer I took the car to Firestone before I put my second set of Kumo's on the car. Six months later and 15K these tires are cupped out and worn on the inside tread all four. Firestone tells me the alieghnment is in according to their spec's. They're blogs all over the place referencing this problem. Does anybody know what Mazda is doing about this problem? I guess I will be changing my tires every six months. The poor guys in the UK are getting ticketed over it.
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