Defective Run Flat tires
Everyone keeps asking if the tires are correctly inflated. The nice thing about paying an obscene amount of money for a car is having sensors that tell you when the tire is low.
The aggravation of seeing the message on the screen of the car forces me correctly inflate the tires.
The problem with these tires probably is tied into 1-tolerances between the outer tire and the inner tire required the Goodyear to reduce the sidewall thickness and strength and/or 2-with the inner run flat tire, there is a reduced volume of air between the inner and outer tire. I'm told by that Michelin doesn't make run flats for the 7 series.
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