Goodyear Tire info for Kansas Speedway

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NASCAR heads to Kansas Speedway this weekend with the Cup and Camping World Truck Series competing at the 1.5-mile track.

While both series will have the same right-side tires, Cup and Truck teams will have their own distinct left-side tire codes.

Cup teams used the right-side tire code in both Kansas races last season and it’s unique to Kansas. The right-side tire is one of Goodyear’s multi-zone tread tires, with two tread compounds on the same tire – one on the inboard two inches for heat resistance (Endurance Zone) and one on the outboard 10 inches for grip (Traction Zone).

“These cars are running tremendous speeds and that, combined with the camber settings in the front end, generates a lot of heat in the tire, which shows up most on the inboard of the right-front,” said Greg Stucker, Goodyear’s director of racing in a press release. “Being able to protect that area with a more heat and wear resistant tread compound frees us up to give teams more grip with the outboard compound. As NASCAR moved to a lower downforce rules package over the past several seasons, we continued to talk to teams and evaluate performance to look at where we could improve grip. We feel like we made a nice step toward that at Kansas last season, and we return with the same tread compounds in 2018.”

This is the first time Cup teams have run this left-side tire code. Compared to what was run at Kansas last season, it features a construction update to bring it into line with what is run at other speedways. Cup teams will also run this left-side code at Charlotte Motor Speedway over the next two weeks.

Here’s the tire info for Cup

Set limits: Cup: Three sets for practice, one set for qualifying and eight sets for the race.

Tire Codes: Left-side — D-4788; Right-side — D-4720

Tire Circumference: Left-side — 2,227 mm (87.68 in.); Right-side — 2,252 mm (88.66 in.)

Minimum Recommended Inflation: Left Front — 22 psi; Left Rear — 22 psi; Right Front — 52 psi; Right Rear — 50 psi

 

Truck Series

This is the first time Truck teams have run either of these two Goodyear tire codes. Compared to what the Trucks ran at Kansas in 2017, this left-side code features a construction update to align with other speedways.

Set limits: Six sets for the event

Tire Codes: Left-side — D-4784; Right-side — D-4720

Tire Circumference: Left-side — 2,227 mm (87.68 in.); Right-side — 2,252 mm (88.66 in.)

Minimum Recommended Inflation: Left Front — 24 psi; Left Rear — 22 psi; Right Front — 52 psi; Right Rear — 50 psi