All three NASCAR national series will run the same Goodyear tire setup this weekend at Homestead-Miami Speedway.
The final weekend of the season will see all three series crown champions. Goodyear will bring a tire that has not raced at Homestead previously, however, it was run at both Texas Motor Speedway and Chicagoland Speedway this year.
TRUCK, XFINITY, AND CUP TIRE INFO:
Set limits: Sprint Cup – five sets for practice and qualifying, 12 sets for the race; Xfinity – eight sets for the event; Camping World Truck Series – six sets for the event
Tire Codes: Left-side — D-4684; Right-side — D-4686
Tire Circumference: Left-side — 87.24 in. (2,216 mm); Right-side — 88.35 in. (2,244 mm)
Minimum Recommended Inflation: Left Front — 19 psi; Left Rear — 19 psi; Right Front — 49 psi; Right Rear — 45 psi
Similar to what was run at Homestead last year, this right-side tire code (D-4686) employs Goodyear’s multi-zone tread technology, which combines two distinct tread compounds on the same tire — the outboard 10 inches of the tread (Traction Zone) features a compound that is designed for grip, while the inboard two inches of the tread (Endurance Zone) is toughened to enhance durability on the part of the tire sees the most heat and takes the most abuse.
Different from Homestead 2015, this right-side tire features a construction change and a compound change on the outboard 10 inches to give the cars and trucks more grip. Compared to Homestead last year, this left-side tire code (D-4684) features an updated construction and mold shape, as well as a compound change for more grip.
As on all NASCAR ovals greater than one-mile in length, teams are required to run inner liners in all four tire positions at Homestead. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.