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Goodyear Fast Facts — Michigan, Texas

Monster Energy NASCAR Cup Series — Race No. 15 – FireKeepers Casino 400
NASCAR Xfinity Series – Race No. 13 – LTi Printing 250
Michigan International Speedway (2.0-mile oval) – Brooklyn, Mich.
Fast Facts for June 8-10, 2018

Tire: Goodyear Eagle Speedway Radials

Set limits: 
Cup: 3 sets for practice, 1 set for qualifying and 7 sets for the race;
Xfinity: 6 sets for the event

Tire Codes: 
Left-side — D-4770;
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

Storyline – Keeping cool in Michigan: Michigan is the highest speed track on the NASCAR Cup circuit, with straightaway speeds reaching 212 mph. Running at those speeds generates a lot of heat in the tires, so Goodyear held a tire test at the track to address that issue this past April. What came out of that session was a completely new tire set-up, with compounds on both the left- and right-side that will introduce more tire wear and run cooler by dissipating more heat.

“Michigan was paved not too many years ago and the track still has a lot of grip, so we have be cognizant of that and the speeds the Cup cars are running when we make our tire recommendation,” said Greg Stucker, Goodyear’s director of racing. “We tested at Michigan this spring with the expressed intent of looking at right-side tire temperatures, and came away with a great compound that will wear more and run cooler. We also were able to update our left-side construction and go with a compound on that side of the car that will wear more as well.”

Notes – New tire set-up debuts for both NASCAR series at Michigan:Teams in both the NASCAR Cup and Xfinity Series will run the same tire set-up at Michigan this weekend . . . this is the first time these teams will be running either of these two Goodyear tire codes . . . this tire set-up came out of a Goodyear test at Michigan on April 17-18 . . . drivers participating in that test were Aric Almirola, Alex Bowman, Austin Dillon, Brad Keselowski and Martin Truex Jr. . . . compared to what was run at Michigan last year, this left-side tire features an updated construction that brings it into line with what is run at other speedways and a new compound to introduce more wear, while this right-side is a single tread compound tire (last year was a multi-zone tread tire) with a new compound that will introduce more wear and run cooler, which was the focus of the April tire test . . . as on all NASCAR ovals greater than one mile in length, teams are required to run inner liners in all four tire positions at Michigan . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

NASCAR Camping World Truck Series – Race No. 8 – PPG 400
Texas Motor Speedway (1.5-mile oval) – Fort Worth, Tex.
Fast Facts for June 7-8, 2018

Tire: Goodyear Eagle Speedway Radials

Set limits: 6 sets for the event

Tire Codes: 
Left-side — D-4782;
Right-side — D-4718

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

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

Notes – New left-side tire for Trucks at Texas: This is the first time NASCAR Camping World Truck Series teams have run this left-side tire code at Texas, though they did run this same right-side code twice at the track last season . . . compared to what Truck teams ran at Texas last season, this left-side tire features a construction update to align with what is run at other speedways . . . 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.

— Goodyear Racing —