Goodyear Tire Fast Facts and Notes - Bristol

NASCAR Sprint Cup Series -- Race No. 24 – Irwin Tools Night Race 

Fast Facts for August 24, 2013 

Tire: Goodyear Eagle Speedway Radials (Sprint Cup and Nationwide); 

Number of Tires: Sprint Cup: Left-side -- 1,250, Right-side -- 1,250; 

Set limits: Sprint Cup: 5 sets for practice/qualifying and 10 sets for the race; 

Tire Codes: Left-side -- D-4416; Right-side -- D-4526 

Tire Circumference: Left-side -- 87.4 in. (2,220 mm); Right-side -- 88.5 (2,248 mm) 

Technical Inspection Inflation: Left Front -- 26 psi; Left Rear -- 26 psi; 
Right Front -- 42 psi; Right Rear -- 40 psi 

Minimum Recommended Inflation: Left Front -- 20 psi; Left Rear -- 18 psi; 
Right Front -- 41 psi; Right Rear -- 38 psi 

Notes: Teams in all three NASCAR series in action at Bristol this week will run the same Goodyear tire codes, though the Sprint Cup and Nationwide tires will be branded “Goodyear Eagle,” while the Camping World Truck tires will be branded “Goodyear Wrangler”. For Sprint Cup teams, this is the same combination of left and right side tires they have run in the last two races at Bristol. Nationwide teams also ran this same combination at Bristol earlier this season. Both Nationwide and Camping World Truck teams ran this right side tire code (D-4526) with a different left side code at Bristol in 2012. This being Truck teams’ first Bristol race on this left side tire code (D-4416), it features both compound and construction changes compared to last season’s left side and will give the trucks more grip. Unlike on most NASCAR ovals one mile or less in length, on which teams generally do not run inner liners in their tires, teams are required to run liners in their right side tires only at Bristol. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.