New tires require urgent adjustments
BROOKLYN, Mich. -- Speeds from Saturday's practice slowed by five to six miles per hour with the new left-side tires NASCAR mandated for Sunday's Sprint Cup race at Michigan International Speedway.
NASCAR and Goodyear called for the change that left teams scrambling late Friday when tires began blistering because of excessive heat buildup from high speeds created by the newly-repaved track.
Greg Biffle posted Saturday's top lap at 195.647 mph, down from the 199.093 mph he posted ...
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