Charles Krall/TruckSeries.com Photo

NASCAR Nextel Cup Series - Race No. 15 - 3M Performance 400
NASCAR Craftsman Truck Series - Race No. 10 - Michigan 200
Michigan International Speedway (2.0-mile oval) - Brooklyn, Mich.
Fast Facts for June 15-17, 2007

Tire:
Goodyear Eagle Speedway Radials (Nextel Cup);
Goodyear Wrangler Speedway Radials (Craftsman Truck)

Number of Tires:
Nextel Cup: Left-side - 1,400, Right-side - 1,400;
Craftsman Truck: Left-side - 325; Right-side - 325

Tire Codes:
Left-side - D-4078
Right-side - D-4062

Tire Circumference:
Left-side - 87.4 in.
Right-side - 88.6 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 - 45 psi
Right Rear - 42 psi
 
Estimated Pit Window:
Every 40-45 laps, based on fuel mileage (Nextel Cup).

Notes: Teams in both the NASCAR Nextel Cup and Craftsman Truck Series will be running the same tire codes this weekend, though the Cup tires will be branded "Goodyear Eagle," while the Truck tires will be branded "Goodyear Wrangler". This is the fourth major NASCAR track to which Goodyear has brought this specific combination of left- and right-side tires this season. Nextel Cup and Craftsman Truck teams have previously run this tire setup at California and Dover during earlier companion weekends. Truck series teams have also run this combination at Kansas.

In addition, this left-side code (D-4078) has been run with a different right-side code by Cup teams at Texas in April. While this left-side code is new to the Goodyear tire lineup for 2007, this right-side code (D-4062) was run at Michigan, Dover and Kansas in 2006.

As on all NASCAR ovals greater than one mile in length, teams are required to run inner liners in all four tire positions at Michigan. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.