[Don]

From MotorSport.com

GOODYEAR TIRE NOTES

NASCAR Nextel Cup Series -- Race No. 19 -- USG Sheetrock 400
NASCAR Busch Series -- Race No. 20 -- USG Durock 300
Chicagoland Speedway (1.5-mile oval) -- Joliet, Ill.

Fast Facts for July 13-15, 2007
Tire: Goodyear Eagle Speedway Radials

Number of Tires: Nextel Cup: Left-side -- 1,475, Right-side -- 1,475
Busch Series: Left-side -- 575, Right-side -- 575

Tire Codes: Left-side -- D-4078; Right-side -- D-4064

Tire Circumference: Left-side -- 87.4 in.; Right-side -- 88.7 in.

Technical Inspection Inflation: Left Front -- 30 psi; Left Rear -- 30 psi; Right Front -- 48 psi; Right Rear -- 45 psi

Minimum Recommended Inflation: Left Front -- 22 psi; Left Rear -- 20 psi; Right Front -- 48 psi; Right Rear -- 44 psi

Estimated Pit Window: Every 50-55 laps, based on fuel mileage (Nextel Cup).

Notes: Teams in both the NASCAR Nextel Cup and Busch Series will run the same tire codes at Chicagoland this weekend . . . this is the same specific combination of left- and right-side tires that Nextel Cup and Busch Series teams ran at Texas earlier this season . . . in addition, teams in these two series have run this left-side code (D-4078) with a different right-side code at several other tracks this season, including California, Dover and Michigan . . . Busch teams have also run this left-side code at Kansas and Kentucky in 2007 . . . as on all NASCAR ovals greater than one-mile in length, teams are required to run inner liners in all four tire positions at Chicagoland . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

-credit: goodyear racing