NASCAR Cup Series — Race No. 12 – 267-laps / 400.5 miles
Kansas Speedway (1.5-mile oval) – Kansas City, Kan.
Fast Facts for May 10-11, 2025
Tire: Goodyear 18-inch Eagle Speedway Radials
Set limits: Cup: 1 set for practice, 1 set for qualifying and 9 sets for the race (8 race sets plus 1 set transferred from qualifying)
Tire Codes: Left-side — D-5184; Right-side — D-5222
Tire Circumference: Left-side — 2,263 mm (89.09 in.); Right-side — 2,277 mm (89.65 in.)
Minimum Recommended Inflation: Left Front — 20 psi; Left Rear — 22 psi; Right Front — 50 psi; Right Rear — 46 psi
Notes – Second straight week on this tire set-up for Cup teams: Being on 18-inch bead diameter tires, NASCAR Cup teams will run a different tire set-up than those in the Craftsman Truck Series at Kansas this weekend . . . Cup teams ran this right-side tire code twice at Kansas in 2024 . . . this is a different left-side tire code than these teams ran at this track last season (compound change for more tire wear and lap-time fall-off) . . .Cup teams have run this same tire set-up at Las Vegas, Homestead, Darlington and Texas already this season . . . with this 18-inch tire, and its lower profile sidewall, Cup cars do not run inner liners in any of their tires.
Goodyear quote – Stu Grant, Goodyear’s general manager of global race tires: “The Cup Series has really put on some great races on intermediate tracks over the past several years, and we follow up last week’s race at Texas with another one this week. Teams will take on the mile-and-a-half Kansas track on the same tire set-up they ran at Texas, as well as at several other tracks earlier this season, so they have a great familiarity there. Having that recent experience on a particular tire set-up will help teams get up to speed quickly and know what to expect throughout the race.”
NASCAR Craftsman Truck Series – Race No. 8 — 134 laps / 201 miles
Kansas Speedway (1.5-mile oval) – Kansas City, Kan.
Fast Facts for May 9-10, 2025
Tire: Goodyear Eagle 15-inch Speedway Radials
Set limits: Craftsman Truck: 5 sets for the event
Tire Codes: Left-side — D-6110; Right-side — D-6112
Tire Circumference: Left-side — 2,225 mm (87.60 in.); Right-side — 2,250 mm (88.58 in.)
Minimum Recommended Inflation: Left Front — 18 psi; Left Rear — 18 psi; Right Front — 50 psi; Right Rear — 48 psi
Notes – Trucks return to Kansas on established tire set-up: Being on 15-inch bead diameter tires, NASCAR Craftsman Truck Series teams will run a different tire set-up than those in the Cup Series at Kansas this weekend . . . this is the same combination of left- and right-side tires these teams have run at Kansas since the start of 2022 . . . they have also run this tire set-up at Las Vegas in March and Texas last week, and are scheduled to run it again at Michigan in June. . . as on all NASCAR ovals greater than one mile in length, Truck teams are required to run inner liners in all four tire positions at Kansas . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.
— Goodyear Racing —