Why are so many NASCAR Cup tires suddenly failing at Phoenix Raceway?

During the hour-long practice session in Phoenix, the issues began when championship contender Chase Briscoe lost a left rear within five minutes of the start of the session. It was the first of many, and those failures are likely not an anomaly but a result of teams being aggressive with suspension adjustments and tire pressures.
Phoenix Raceway is a unique type of oval because it is ...Keep reading