Goodyear has announced the tires that will be used by all three of NASCAR’s national series during Speedweeks at Daytona International Speedway.
While all three series will use the same type of tire compounds, only the Cup and Xfinity Series have raced on it before.
They first used the new compounds in July at Daytona. The previous tire compound used at Daytona had been introduced in 2013.
For the Trucks, compared to what was run at Daytona last February, there is a compound change to both the left and right-side tires to give the trucks more grip.
As on all NASCAR ovals greater than 1 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.
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Here’s the full tire info from Goodyear.
Set limits: Cup: Clash: Six sets for the event; Daytona 500: eight sets for practice/qualifying/Duels & seven sets (plus one transferred set) for the race.
Xfinity: Four sets for the event.
Camping World Truck: Five sets for the event.
Tire Codes: Left-side -- D-4738; Right-side -- D-4740
Tire Circumference: Left-side -- 2,237 mm (88.07 in.); Right-side -- 2,247 mm (88.46 in.)
Minimum Recommended Inflation: Left Front -- 27 psi; Left Rear -- 27 psi; Right Front -- 50 psi; Right Rear -- 48 psi