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Goodyear Tire info for Cup at Sonoma, Trucks at Gateway

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Both Cup and Gander Outdoors Truck Series will use tire setups that are new to Sonoma Raceway and World Wide Technology Raceway at Gateway respectively.

In Cup, teams will the same tire code on all four tires at Sonoma. This is the first time teams have run this tire code.

Compared to last year’s tire code at Sonoma, this tire features a minor construction update, similar to what has been incorporated at other tracks. This tire code is unique to this track for NASCAR’s three national touring series, which will run different tire codes at other road courses.

As on all NASCAR road courses, teams will not run inner liners in their tires at Sonoma.

Set limits: Three sets for practice, one set for qualifying and seven sets for the race (Six race sets plus one set transferred from qualifying or practice)

Tire Code: D-4882 (same on all four tire positions)

Tire Circumference: 88.58 in. (2,250 mm)

Minimum Recommended Inflation: Left Front – 22 psi; Right Front – 20 psi; Left Rear – 17 psi; Right Rear – 17 psi

 

Gander Outdoors Truck Series tire info

Truck Series teams will use the same tire setup that had last weekend at Iowa Speedway, but this will be the first time they’ve used it at Gateway.

Compared to what was run in 2018, this left-side tire features a construction update to align with what is run at other tracks, while this right-side tire features a compound change 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 Gateway.

Air pressure in the inner liners should be 12-25 psi greater than that of the outer tire.

Set limits: Five sets for the event

Tire Codes: Left-side — D-4864; Right-side — D-4876

Tire Circumference: Left-side — 2,227 mm (87.68 in.); Right-side — 2,244 mm (88.35 in.)

Minimum Recommended Inflation: Left Front – 15 psi; Left Rear – 13 psi; Right Front – 31 psi; Right Rear – 28 psi

Goodyear Tire info for Xfinity, Trucks at Iowa Speedway

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Both the Xfinity and Gander Outdoors Truck Series will use a brand new tire setup for this weekend’s races at Iowa Speedway.

This is the first time teams in both series have used this combination of left- and right-side tires at Iowa, though Xfinity teams did run this left-side tire code at Phoenix in March. Compared to what was run at Iowa last season, the left- and right-side tires feature minor construction changes to align them with what is run at similar tracks and compound changes for more grip.

This tire setup is the result of a Goodyear test at Iowa on April 16-17 with Christopher Bell, Cole Custer and Tyler Reddick.

As on most NASCAR ovals 1 mile or less in length, teams will not run inner liners in their tires at Iowa.

Here is the tire info.

Set limits: Xfinity: Six sets for the event; Truck: Seven sets for the event

Tire Codes: Left-side — D-4864; Right-side — D-4884

Minimum Recommended Inflation: Left Front – 16 psi; Left Rear – 16 psi; Right Front – 36 psi; Right Rear – 34 psi

Goodyear bringing new tire compounds to Dover

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All three of NASCAR’s national series will use new tire combinations this weekend at Dover International Speedway.

Compared to what was run at Dover last season, the tire setup features construction updates on both sides of the car. Cup and Xfinity teams will have a compound change on the left-side tire designed to match up better with the higher downforce package in Cup.

The right-side tire must withstand the loads generated and at the same time have a tread compound that will rubber-in the track surface.  With the new higher downforce settings and 750 horsepower engine package in the Cup Series, corner speeds will be up at Dover, thus putting more demand on the tires.

These tires were confirmed in an April 9 test at Dover featuring Austin Dillon, Kyle Larson and Ricky Stenhouse Jr.

Dover is unique among NASCAR ovals one mile or less in length, in that inner liners are required on all four tire positions. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

Here’s the tire info for this weekend.

Set limits: Cup: Three sets for practice, one set for qualifying and nine sets for the race; Xfinity: Six sets for the event; Trucks: Six sets for the event

Tire Codes: Left-side — D-4868; Right-side — D-4872

Tire Circumference: Left-side — 2,227 mm (87.68 in.); Right-side — 2,250 mm (88.58 in.)

Minimum Recommended Inflation: Left Front – 19 psi; Left Rear – 19 psi; Right Front – 49 psi; Right Rear – 45 psi

Goodyear also announced that the tire test scheduled for this week at Chicagoland Speedway has been postponed to May 7-8 due to inclement weather.

Drivers scheduled to participate are Brad Keselowski (Team Penske),  Ryan Newman (Roush Fenway Racing) and Paul Menard (Wood Brothers Racing).

The teams are based on top 20 owner points from last year, which is why three Ford teams are taking part in the test.

Goodyear tire info for Bristol Motor Speedway

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NASCAR makes its first visit to Bristol Motor Speedway and “Thunder Valley” this weekend and it will do so with a new set of Goodyear tires in both Cup and Xfinity.

Compared to what was run at Bristol last year, this tire setup features construction updates on both sides of the car and a compound change on the left-side tire. This is the only track at which NASCAR teams are scheduled to run either of these two tire codes.

Unlike on most NASCAR ovals 1 mile or less in length, on which teams generally do not run inner liners in their tires, teams are required to run liners in their right-side tires only at Bristol. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

Here’s the tire info for this weekend’s races.

Set limits: Cup: Three sets for practice, one set for qualifying and nine sets for the race; Xfinity: six sets for the event

Tire Codes: Left-side – D-4860; Right-side – D-4862

Tire Circumference: Left-side — 2,223 mm (87.52 in.); Right-side – 2,251 mm (88.62 in.)

Minimum Recommended Inflation: Left Front – 20 psi; Left Rear – 18 psi;Right Front – 43 psi; Right Rear – 40 psi

Goodyear tire info for NASCAR at Auto Club Speedway

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NASCAR makes its first visit to a 2-mile speedway this weekend as it closes out the West Coast Swing at Auto Club Speedway.

Both Cup and Xfinity teams will be in action and they will each have a new tire combination.

While both series used this left-side tire code at Darlington last year, this is the first time they will use this right-side tire code. Compared to what was run at Auto Club last year, both the left and right-side tire feature construction updates to bring them in line with what is run at other speedways.

The right-side tire is a multi-zone tread tire, featuring two distinct tread compounds on the same tire — one for heat and wear resistance on the inboard two inches of the tread (Endurance Zone) and one for grip on the outboard 10 inches (Traction Zone).

“Fontana presents multiple challenges for teams as far as tires are concerned,” said Greg Stucker, Goodyear’s director of racing in a press release. “First, with NASCAR’s new rules package and more downforce on the Cup cars, observing our minimum recommended air pressures becomes even more important. Teams are always looking to add grip at Fontana, and one way they do that is by dropping the air pressures, particularly in the left-side tires.

“While we have made some updates to our constructions over the past several seasons, low air can still cause problems. Going low on air causes the sidewall of the tire to over-deflect early in a run and weaken its structure, creating a potential problem later. Secondly at Fontana, you have a track surface that wears tires heavily. The fall-off is around three seconds a lap over the course of a fuel run, so tire management will come into play all day.”

The tire combination is a result of a tire test in January that included Joey Logano, Daniel Suarez and Martin Truex Jr.

As on all NASCAR ovals greater than 1 mile in length, teams are required to run liners in all four tire positions at Auto Club. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

Here’s the tire info for this week:

Set limits: Cup: three sets for practice, one set for qualifying and 11 sets for race; Xfinity: eight sets for the event

Tire Codes: Left-side – D-4834; Right-side – D-4838

Tire Circumference: Left-side – 2,227 mm (87.68 in.); Right-side – 2,251 mm (88.62 in.)

Minimum Recommended Inflation: Left Front – 19 psi; Left Rear – 19 psi; Right Front – 45 psi; Right Rear – 42 psi