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Goodyear tire info for Watkins Glen, Eldora

AUTO: JUL 21 Monster Energy NASCAR Cup Series - Foxwoods Resort Casino 301

LOUDON, NH - JULY 21: Goodyear tires ready to go prior to the start of the NASCAR Monster Energy Cup Series Foxwoods 301 on July 21, 2019, at New Hampshire Motor Speedway in Loudon, New Hampshire. (Photo by Michael Bush/Icon Sportswire via Getty Images)

Icon Sportswire via Getty Images

All three of NASCAR’s national series will be competing on new tires this weekend as they race on different track surfaces.

Cup and Xfinity Series teams will be road-course racing at Watkins Glen International, and the Gander Outdoors Truck Series holds its annual race on the dirt of Eldora Speedway.

Here’s the tire info for both tracks.

Cup and Xfinity - Watkins Glen

Cup and Xfinity Series will run the same Goodyear tire code on all four tires at Watkins Glen. This is a brand new tire, featuring the same tread compounds as 2018 with just a construction update.

Watkins Glen International is a faster and less technical road course than the Cup Series’ earlier stop at Sonoma Raceway. WGI’s 2016 repave only added to that. Because of the sustained speed
 on the course, WGI requires a different tire
 set-up, and one that utilizes a more heat-resistant tread compound.

While the compound run at Sonoma is more tractive by comparison, the one run at WGI is still among the top-third in that area in Goodyear’s 2019 tire lineup.

Tire info

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

Xfinity: Six sets for the event

Tire Code: D-4926 (same on all four tire positions)

Tire Circumference: 88.23 in. (2,241 mm)

Minimum Recommended Inflation: Left Front -- 26 psi; Right Front -- 24 psi; Left Rear -- 21 psi; Right Rear -- 21 psi

Truck Series - Eldora

This is a new tire set-up for Truck Series teams at Eldora. Compared to the 2018 Eldora race, both this left-side and right-side tire feature a tread compound change to introduce more wear.

There are three main differences between this tire set-up and the one that Truck teams normally run on asphalt ovals. 1) these are bias ply tires, not radials, and are more compliant and able to envelope the irregularities of the dirt surface. 2) these tires have a block-style tread pattern with leading edges on the blocks to bite into the dirt surface and grooves to help evacuate the dirt, not a “slick” or smooth tread. 3) This left-side tire is significantly shorter to create more stagger between the left- and right-side tires.

Tire info

Teams will not run inner liners in their tires at Eldora.

Set limits: Four sets for the event

Tire Codes: Left-side -- D-3024; Right-side -- D-3026

Tire Circumference: Left-side -- 85.79 in. (2,179 mm); Right-side -- 88.50 in. (2,248 mm)

Minimum Recommended Inflation: Left Front -- 18 psi; Left Rear – 18 psi; Right Front -- 22 psi; Right Rear -- 22 psi