Goodyear tire info for Michigan (Cup, Xfinity) and Texas (Truck)

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For the second consecutive week, Goodyear rubber will get another high-speed workout in Sunday’s FireKeepers Casino 400 NASCAR Cup race and Saturday’s LTi Printing 250 Xfinity race at the 2-mile Michigan International Speedway.

Meanwhile, the Gander Outdoors Truck Series will visit another high-speed track, the 1.5-mile Texas Motor Speedway, in Friday night’s SpeedyCash.com 400.

Here’s how this weekend’s tire notes shapes up at both tracks:

According to this week’s Goodyear media release about racing at Michigan, “Recent Monster Energy NASCAR Cup races at Charlotte Motor Speedway and Kansas Speedway – where passes for the lead and passing in general were up – have the NASCAR world excited about what we might see at Michigan International Speedway this weekend. With this current Cup rules package, corner speeds will be up at Michigan and tight racing throughout the field should be the order of the day. The track is still relatively smooth since it was resurfaced in 2012 so Goodyear’s tire set-up at Michigan is now aligned with what is run at another recent repave in Texas Motor Speedway.”

Added Goodyear director of racing Greg Stucker, With Michigan being a relatively recent repave, combined with the 2019 Cup rules package and drivers expected to be on the throttle all the way through the corners, we always have to be cognizant of tire heat. We combat that with the tread compounds we bring to tracks with smooth surfaces, as well as the gage or thickness of that tread that allows the tire to dissipate heat. Overall, this weekend could be a good show for the fans if it is anything like some other recent events where corner speeds have been up and there has been a lot of tight racing and passing.”

Here’s the Cup and Xfinity tire info for Michigan:

Tire: Goodyear Eagle Speedway Radials for both Cup and Xfinity.

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

Tire Codes: Left-side — D-4798; Right-side – D-4796

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

Minimum Recommended Inflation: Left Front — 22 psi; Left Rear – 22 psi; Right Front — 54 psi; Right Rear — 50 psi

Notes for Cup and Xfinity: Teams in both the Cup and Xfinity Series will run the same tire set-up at Michigan this weekend. This is the same combination of left- and right-side tires that these teams ran at Texas in March. Cup and Xfinity teams ran this same right-side tire code at Michigan in 2018. This is a different left-side than what was run on this track last year, featuring a construction change to align with other speedways. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

Here’s the Trucks tire info for Texas:

Tire: Goodyear Eagle Speedway Radials

Set limits: Truck: Six sets for the event

Tire Codes: Left-side — D-4798; Right-side – D-4796

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

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

Notes for Trucks: This is the same combination of left- and right-side tires that Gander Outdoors Trucks teams ran at Texas in March. Truck teams will run this same right-side tire code at Kansas next week and this complete tire set-up at Kentucky in July. As on all NASCAR ovals greater than one mile in length, teams are required to run liners in all four tire positions at Texas. Air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

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