Goodyear Fast Facts - NASCAR / Texas

NASCAR Sprint Cup Series -- Race No. 34 – AAA Texas 500
NASCAR Nationwide Series -- Race No. 31 – O'Reilly Auto Parts Challenge
NASCAR Camping World Truck Series -- Race No. 20 -- WinStar World Casino 350
Texas Motor Speedway (1.5-mile oval) – Fort Worth, Tex.
Fast Facts for October 30-November 2, 2014
Tire: Goodyear Eagle Speedway Radials
Set limits: Sprint Cup: 5 sets for practice/qualifying and 11 sets for  the race;                                                Nationwide: 7 sets for the event;                                                                            Camping World Truck: 6 sets for the event
Tire Codes: Left-side -- D-4392; Right-side -- D-4618
Tire Circumference: Left-side -- 87.40 in. (2,220 mm); Right-side --  88.46 in. (2,247 mm)
Technical Inspection Inflation: Left Front -- 30 psi; Left Rear -- 30  psi                                                       Right Front -- 50 psi; Right Rear -- 47 psi
Minimum Recommended Inflation: Left Front -- 23 psi; Left Rear -- 21  psi;                                                       Right Front -- 53 psi; Right Rear -- 49 psi
Notes: Teams in all three NASCAR series in action at Texas this weekend  will run the same tire set-up . . . this is the same combination of left- and right-side tires that these teams ran at Texas earlier this season -- Sprint Cup and Nationwide in April and Camping World Truck in June . . . the only change from this spring is that the minimum recommended inflation on both right-side tires has been raised by two psi . . . this left-side tire code (D-4392) has been run by NASCAR teams at Texas since 2011 . . . this right-side tire code (D-4618) was introduced at this track for 2014. . . this right-side employs Goodyear's multi-zone tread technology, which combines two distinct tread compounds on the same tire -- the outside 10 inches of the tread features a compound that is designed for grip, while the inside two inches of the tread is toughened to enhance durability on the part of the tire sees the most heat and takes the most abuse . . . as on all NASCAR ovals greater than one mile in length, teams are required to run inner liners in all four tire positions at Texas . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.