Tire Change for Michigan

Goodyear Tires

Goodyear sent out a statement late Friday saying the decision to change left side tires came as a safety precaution. (Photo: Getty Images)

BROOKLYN, Mich. – Goodyear will change the left side tire combination for the Michigan Sprint Cup Series race after blistering problems surfaced in the wake of higher speeds during practice and testing.

The tire manufacturer sent out a statement late Friday saying the decision to change left side tires came as a safety precaution.

In the final Sprint Cup practice on Friday afternoon, Greg Biffle ran an average speed in excess of 204 mph for his fastest lap. That lap was more than eight miles an hour faster than when Goodyear tested tires on the new Michigan pavement in April.

The replacement tire was run at Charlotte Motor Speedway after that track was repaved at the end of the 2005 season and run at both races at the track the following two years.

Goodyear feels that since the tire proved durable and provided an ample amount of grip for the repaved Charlotte surface, it made it a logical choice to be put in place for the same situation for the fresh asphalt at Michigan.

Goodyear will ship in enough tires for teams to have 10 sets of tires for the race, which is the original NASCAR set limit for this event. Teams will run their original allotment of right-side tires in Sunday’s race.

NASCAR has added another practice session on Saturday following the Nationwide Series race.

Teams will have additional tires available for a NASCAR-scheduled practice following the Nationwide Series race on Saturday.

“We decided this move was best to provide quality racing here on Sunday,” said Greg Stucker, Goodyear’s Director of Race Tires. “In collecting data and speaking with drivers and crew chiefs throughout the practice days, we had two choices to make.

“Our first option was to make the team’s race sets available to them before practice on Friday and allow them the chance to ‘scuff’ them, in order to run them through a heat cycle to increase heat resistance. We did that, but after all the practice sessions ended on Friday, we concluded the safer option was to go to our contingency plan and bring in the 4020s.

“This code has been run before under similar track conditions and we have full confidence that it will give drivers and teams the enough grip to run a great race on Sunday, while doing so in the safest possible manner. Safety is always our No. 1 concern, and by bringing this tire here this weekend, we will accomplish that goal.”

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