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Goodyear Tire Notes – Daytona

NASCAR Cup Series – Busch Clash – 35 laps / 126.35 miles
NASCAR Cup Series — Race No. 1 – Daytona 500 – 200 laps / 500 miles
NASCAR Xfinity Series — Race No. 1 – 120 laps / 300 miles
NASCAR Gander RV & Outdoors Truck Series – Race No. 1 – 100 laps / 250 miles

Daytona International Speedway (3.61-mile road course / 2.5-mile oval) – Daytona Beach, Fla.Fast Facts for February 9-14, 2021

Tire: Goodyear Eagle Superspeedway Radials

Set limits:
Daytona 500: 7 sets for practice/qualifying/Duel, and 8 sets for the race (7 race sets plus 1 set transferred from qualifying);
Xfinity: 4 sets for the event;
Gander RV & Outdoors Truck: 4 sets for the event

Tire Codes:
Left-side — D-4888;
Right-side — D-4890

Tire Circumference:
Left-side — 2,232 mm (87.87 in.);
Right-side — 2,250 mm (88.58 in.)

Minimum Recommended Inflation:
Left Front — 26 psi; Left Rear — 26 psi;
Right Front — 50 psi; Right Rear — 48 psi

Storyline – Mechanical grip critical with close-quarters racing on Daytona oval: The combination of NASCAR’s rules package and Daytona International Speedway’s layout produces some of the tightest racing on the circuit.  With cars just inches apart all the way around the two-and-a-half-mile superspeedway, the mechanical grip generated by Goodyear’s tire set-up is designed to give the cars the stability needed for the turbulent air produced by the tight, multi-lane racing.  The tread compounds Cup teams will race on this week have remained unchanged since 2017, with the tire constructions being updated to a more traditional speedway set-up starting in 2019.

“Building a tire set-up for Daytona is a very specialized challenge,” said Greg Stucker, Goodyear’s director of racing.  “The air in-and-around the pack is so turbulent that it is vital to give the cars the right amount of mechanical grip to keep them stable enough to not contact each other as the buffet around just inches apart.  Our tread compounds give this set-up plenty of grip, and we have rolled in a change to the construction over the past couple seasons to make this more of a speedway set-up.”

Superspeedway notes – NASCAR national series return to Daytona on 2020 tire set-up: Teams in all of NASCAR’s top three divisions will run the same tire set-up on the Daytona oval this week . . . this is the same combination of left- and right-side tires that NASCAR teams in all three of these series ran at Daytona last season . . . this tire set-up dates back to July 2019 for the Cup and last February for the Xfinity cars and Trucks . . . as on all NASCAR ovals greater than one mile in length, teams are required to run inner liners in all four tire positions at Daytona . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

Road course notes: Teams in the Cup Series will run the Busch Clash on the DIS road course this season . . . as on all NASCAR road courses, the Cup cars will run the same tire code on all four corners of the car . . . they will be running a different tire code (D-4940) than they ran on this course last season . . . this tire features a compound change (more grip) compared to the tire they ran on the Daytona road course in 2020 . . . Cup teams have also run this tire code on the Charlotte Roval the last two seasons . . . teams will have 4 sets of slicks and 3 sets of wet weather tires for the Clash . . . the last time the Cup series ran the “wets” in competition was at the Charlotte Roval last October.

Goodyear Blimp – Airship to cover Thursday-Sunday events: The Goodyear Blimp “Wingfoot One” is scheduled to be in the air over Daytona International Speedway this week . . . Wingfoot One, based out of Pompano Beach, Fla., will provide aerial coverage for Fox Sports during the NASCAR Cup Duels on Thursday, NASCAR Gander RV & Outdoors Truck Series race on Friday, NASCAR Xfinity Series race on Saturday and Daytona 500 on Sunday.

— Goodyear Racing —