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Goodyear tire info for Southern 500 weekend

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NASCAR makes its annual trip to Darlington Raceway this weekend and it will do so with tires that have never been raced on the track’s surface.

Cup and Xfinity teams will bring the kind of tires that were used earlier this year at Chicagoland Speedway. Compared to what these teams ran at this track last year, both tires feature the same tread compounds with a construction update to align with what is run at other speedways.

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

A season-high 14 sets of tires are available to Cup teams on race day, meaning they will have to go an average of just more than 26 laps per set to complete the race.

As part of the Throwback Weekend and its 1990-94 theme, all tires will have the Goodyear logos that were present on race tires in the mid-90s beginning in 1992, with yellow “Goodyear #1” and “Eagle” logos.

Set limits: Cup: Three sets for practice, one set for qualifying and 14 sets for the race (13 race sets plus one set transferred from qualifying or practice);

Xfinity: Seven sets for the event

Tire Codes: Left-side — D-4928; Right-side — D-4930

Tire Circumference: Left-side — 2,227 mm (87.68 in.); Right-side — 2,248 mm (88.50 in.)

Minimum Recommended Inflation: Left Front — 19 psi; Left Rear – 19 psi; Right Front — 52 psi; Right Rear — 48 psi

Goodyear tire info for Xfinity at Road America, Trucks in Canada

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The Xfinity and Gander Outdoors Truck Series are the only national NASCAR series in action this weekend and they’ll each be competing on road courses.

They’ll also be competing on their respective tracks with tire codes that are new to each circuit.

Here’s the tire info for each series:

Xfinity – CTECH Manufacturing 180 at Road America (3 p.m. ET Saturday on NBCSN)

While the tires Xfinity teams will race on this weekend were used two weeks ago at Mid-Ohio, they will see their first use at Road America.

All four tires will feature the same code.

Compared to what was run at this course last season, this tire features the same tread compound with a construction update. As on all NASCAR road courses, teams will not run inner liners in their tires at Road America.

Tire: Goodyear Eagle Road Course Radials

Set limits: Six sets for the event

Tire Code: D-4920 (same on all four tire positions)

Tire Circumference: 88.66 in. (2,252 mm)

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

 

Trucks – Chevrolet Silverado 250 at Canadian Tire Motorsports Park (2:30 p.m. ET Sunday on FS1)

The Truck Series will have the same code for all four tires.

This is the first time Truck teams have run this tire code. Compared to what was run at this course last season, this tire features the same tread compound with a construction update. As on all NASCAR road courses, teams will not run inner liners in their tires at CTMP.

Set limits: Five sets for the event

Tire Code: D-4920 (same on all four tire positions)

Tire Circumference: 88.66 in. (2,252 mm)

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

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.