Firestone Signs Off on Phoenix IndyCar Compound After Cold-Weather Verification
"Tire verification is the unglamorous backbone of spec racing. Nobody notices when it works."
— Revvly Take
Firestone completed tire validation testing at Phoenix International Raceway despite sub-optimal conditions, confirming the spec compound is ready for series competition. The verification process checks wear rates, thermal performance, and degradation curves across the target operating window—critical data that keeps IndyCar's tire war contained and racing competitive.
Marshall Pruett
RACER · Jan 8
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