GOODYEAR TIRE NOTES
NASCAR Cup Series — Race No. 17 – 400 laps / 350 miles
Iowa Speedway (0.875-mile oval) – Newton, Iowa
Fast Facts for June 14-16, 2024
Tire: Goodyear Eagle 18-inch Speedway Radials
Set limits: 3 sets for practice, 1 set for qualifying and 10 sets for the race
(9 race sets plus 1 set transferred from qualifying)
Tire Codes: Left-side — D-5208; Right-side — D-5220
Tire Circumference: Left-side — 2,249 mm (88.54 in.); Right-side — 2,276 mm (89.61 in.)
Minimum Recommended Inflation: Left Front — 14 psi; Left Rear — 14 psi;
Right Front — 30 psi; Right Rear — 28 psi
Storyline – Cup cars ready for first race on partially repaved Iowa Speedway: Iowa Speedway was originally built in 2006 and after many years of patching the track, larger sections of the corners have now been repaved for the first NASCAR Cup race at the facility. Some of the original pavement remains, so the grip level will vary, with the repaved sections having more grip than the original sections. The surface also features several bumps — specifically entering turn one — that will challenge drivers.
“Iowa fits into our short track group of tracks from a tire construction standpoint,” said Greg Stucker, Goodyear’s director of racing. “We were able to hold a confirmation test there just last month, right after the repaving was completed. We learned a lot about the surface and were able to confirm the same tire set-up we raced as the ‘Prime’ tire in the All-Star race at North Wilkesboro. There will be a lot of grip on the new sections in the corners, but the existing sections down the straightaways still have a lot of character.”
Notes – Cup cars on All-Star “Prime” tire at Iowa: This is the inaugural event for the NASCAR Cup cars at Iowa Speedway . . . being on the 18-inch bead diameter tire, NASCAR Cup teams will run a different tire set-up than those in the Xfinity Series this week . . . this is the same combination of left- and right-side tires that Cup teams ran as the “Prime” tire set-up at the All-Star race at North Wilkesboro last month . . . they are also scheduled to run this tire set-up at New Hampshire next week . . . this set-up was confirmed at a Goodyear test at Iowa on May 28 . . . teams participating in that test were the No. 5 Hendrick Motorsports Chevrolet with Kyle Larson, No. 6 Roush-Fenway-Keselowski Ford with Brad Keselowski and No. 20 Joe Gibbs Racing Toyota with Christopher Bell . . . with this 18-inch tire, and its lower profile sidewall, NASCAR Cup cars do not run inner liners in any of their tires.
Wet Weather Tires – Goodyear to bring wet weather tires to Iowa: Goodyear will bring its 18-inch wet weather radial tires to Iowa for the NASCAR Cup cars, should NASCAR determine that conditions warrant . . . Cup teams will have a maximum of 4 sets of wet weather tires for the event . . . NASCAR Cup teams last ran a wet weather tire in competition at Richmond in April . . . in addition to the obvious difference of a tread pattern versus Goodyear’s dry weather “slick” tires, the “Goodyear” and “Eagle” lettering on the sidewalls of the wet weather tires is white, not the standard yellow.
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GOODYEAR TIRE NOTES
NASCAR Xfinity Series — Race No. 15 — 250 laps / 218.75 miles
Iowa Speedway (0.875-mile oval) – Newton, Iowa
Fast Facts for June 14-15, 2024
Tire: Goodyear Eagle 15-inch Speedway Radials
Set limits: Xfinity: 6 sets for the event
Tire Codes: Left-side — D-6114; Right-side — D-6136
Tire Circumference: Left-side — 2,218 mm (87.32 in.); Right-side — 2,244 mm (88.35 in.)
Minimum Recommended Inflation: Left Front — 16 psi; Left Rear — 16 psi;
Right Front — 32 psi; Right Rear — 28 psi
Notes – Xfinity Series back at Iowa for first time since 2019: After holding 20 races at Iowa Speedway between 2009-2019, the NASCAR Xfinity cars return to the facility for the first time in five years . . . being on 15-inch bead diameter tires, Xfinity teams will run a different tire set-up than those in the Cup Series at Iowa this week . . . while this right-side tire is unique to Iowa, Xfinity teams have run this left-side tire at both Phoenix and Richmond already this season . . . as on most NASCAR ovals one mile or less in length, Xfinity teams will not run inner liners in their tires at Iowa.
Wet Weather Tires – Goodyear to bring wet weather tires to Iowa: Goodyear will bring its 15-inch wet weather radial tires to Iowa for the NASCAR Xfinity Series cars, should NASCAR determine that conditions warrant . . . Xfinity teams will have 3 sets of wets available for the event . . . Xfinity teams last ran in wet conditions on the Indianapolis road course last August, and has not yet run in the wet on a short track . . . in addition to the obvious difference of a tread pattern versus Goodyear’s dry weather “slick” tires, the “Goodyear” and “Eagle” lettering on the sidewalls of the wet weather tires is white, not the standard yellow.
Follow us on X: @GoodyearRacing.
Goodyear Racing PR
