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Goodyear Fast Facts -- Chicagoland

Monster Energy NASCAR Cup Series -- Race No. 17 - Overton's 400
NASCAR Xfinity Series - Race No. 15 - Overton's 300
Chicagoland Speedway (1.5-mile oval) - Joliet, Ill.
Fast Facts for June 29-July 1, 2018

Tire: Goodyear Eagle Speedway Radials

Set limits:
Cup: 3 sets for practice, 1 set for qualifying and 8 sets for the race;
Xfinity: 8 sets for the event

Tire Codes:
Left-side -- D-4754; Right-side -- D-4746

Tire Circumference:
Left-side -- 2,227 mm (87.68 in.); Right-side -- 2,251 mm (88.62 in.)

Minimum Recommended Inflation:
Left Front -- 19 psi; Left Rear -- 19 psi;
Right Front -- 48 psi; Right Rear -- 44 psi

Storyline - Grip + give-up = good racing: Goodyear tested Chicagoland prior to the 2017 race at the track and gave teams a grip enhancement through its choice of tread compounds. That, combined with the fact that we will see more than two seconds of fall-off over the course of a full fuel run, will provide for some good racing at the Joliet, Ill.-track this weekend. The inclusion of a multi-zone tread tire on the right-side enables Goodyear to give adequate grip through the 10-inch Traction Zone on the outboard portion of the tread, while protecting from the heat generated by the high speeds on the inboard two-inch Endurance Zone.

"I think we made a nice grip improvement at Chicagoland last season, and we return with the same multi-zone tread right-side tire this season," said Greg Stucker, Goodyear's director of racing. "The track surface at Chicagoland has really weathered over the past several seasons and as a result we see a good amount of wear and fall-off. That, with the tire combination we bring, helps promote some good racing with tire management coming into play with both 'comers' and 'goers' throughout the field each run."

Notes - Left-side tire change for Cup, Xfinity at Chicagoland: While teams in all three NASCAR series in action at Chicagoland this week will run the same multi-zone tread right-side tire code, teams in the Cup and Xfinity Series will run a different left-side code than those in the Truck Series . . . for Cup and Xfinity, this is the same multi-zone tread right-side tire as last year . . . Goodyear's multi-zone tire features two distinct compounds across the tread - one on the inboard two inches for heat resistance (Endurance Zone) and one on the outboard 10 inches for grip (Traction Zone) . . . while Cup and Xfinity teams ran this left-side tire at Fontana earlier this season, this is the first time running it at Chicagoland . . . compared to what was run at this track in 2017, this left-side features a construction update to align it with what is run at other speedways . . . 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.

NASCAR Camping World Truck Series - Race No. 11 - Overton's 225
Chicagoland Speedway (1.5-mile oval) - Joliet, Ill.
Fast Facts for June 28-29, 2018

Tire: Goodyear Eagle Speedway Radials

Set limits:
Camping World Truck: 5 sets for the event

Tire Codes:
Left-side -- D-4788; Right-side -- D-4746

Tire Circumference:
Left-side -- 2,227 mm (87.68 in.); Right-side -- 2,251 mm (88.62 in.)

Minimum Recommended Inflation:
Left Front -- 21 psi; Left Rear -- 19 psi;
Right Front -- 48 psi; Right Rear -- 44 psi

Notes - Trucks on different left-side tire for return to Chicagoland: While teams in all three NASCAR series in action at Chicagoland this week will run the same right-side tire code, teams in the Camping World Truck Series will run a different left-side code than those in the Cup and Xfinity Series . . . for the Trucks, this is the same multi-zone tread right-side tire as last year . . . Goodyear's multi-zone tire features two distinct compounds across the tread - one on the inboard two inches for heat resistance (Endurance Zone) and one on the outboard 10 inches for grip (Traction Zone) . . . while Truck teams ran this left-side tire at Dover earlier this season, this is the first time running it at Chicagoland . . . compared to what was run at this track in 2017, this left-side features a construction update to align it with what is run at other speedways . . . 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.

--- Goodyear Racing ---