NASCAR Cup Series — Race No. 15 – 200 laps / 400 miles
Michigan International Speedway (2.0-mile oval) – Brooklyn, Mich.
Fast Facts for June 7-8, 2025
Tire: Goodyear Eagle 18-inch Speedway Radials
Set limits: Cup: 1 set for practice, 1 set for qualifying and 7 sets for the race
(6 race sets plus 1 set transferred from qualifying)
Tire Codes: Left-side — D-5284; Right-side — D-5218
Tire Circumference: Left-side — 2,263 mm (89.09 in.); Right-side — 2,277 mm (89.65 in.)
Minimum Recommended Inflation: Left Front — 22 psi; Left Rear – 24 psi;
Right Front — 50 psi; Right Rear — 46 psi
Notes – Cup teams now on Charlotte left-side tire at Michigan: 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 Michigan this week . . . this is the same right-side tire code that Cup teams ran at Michigan in 2024, as well as at Daytona and Talladega earlier this season . . . this left-side tire debuted at Charlotte two weeks ago . . . compared to what Cup teams ran at Michigan last season, this left-side features a compound change for more tire wear and lap-time fall-off . . . with this 18-inch tire, and its lower profile sidewall, NASCAR Cup cars do not run inner liners in any of their tires.
Goodyear quote – Stu Grant, Goodyear general manager of global race tires: “Michigan is extremely fast with a track surface that is pretty smooth. That relative smoothness will allow teams to potentially work in some pit strategy with two-tire stops, depending on the stint. For the fans, another great aspect of Michigan is that it has multiple racing grooves, enabling drivers to run different lines to affect their set-up and make passes.”
NASCAR Craftsman Truck Series – Race No. 13 – 125 laps / 250 miles
Michigan International Speedway (2.0-mile oval) – Brooklyn, Mich.
Fast Facts for June 6-7, 2025
Tire: Goodyear Eagle 15-inch Speedway Radials
Set limits: 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 — 19 psi; Left Rear – 19 psi;
Right Front — 52 psi; Right Rear — 48 psi
Notes – Craftsman Trucks return to Michigan: This is the first time NASCAR Craftsman Truck Series will race at Michigan since 2020 . . . 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 Michigan this weekend . . . this is the same combination of left- and right-side tires that Truck teams have run at Las Vegas, Texas and Kansas earlier this season . . . 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 Michigan . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.
— Goodyear —