NASCAR Cup Series — Race No. 22 – 301 laps / 318.5 miles
NASCAR Xfinity Series — Race No. 19 – 200 laps / 211.6 miles
New Hampshire Motor Speedway (1.058-mile oval) – Loudon, N.H.
Fast Facts for July 17-18, 2021
Tire: Goodyear Eagle Speedway Radials
Cup: 8 sets for the race;
Xfinity: 4 sets for the race
Left-side — D-4964;
Right-side — D-4966
Left-side — 2,218 mm (87.32 in.);
Right-side — 2,242 mm (88.27 in.)
Minimum Recommended Inflation:
Left Front — 12 psi;
Left Rear — 12 psi;
Right Front — 30 psi;
Right Rear — 27 psi
Storyline – Staying at the minimum will yield the maximum at New Hampshire: One of the keys to success at New Hampshire Motor Speedway is finding grip on the “flat” mile track. One way teams do that is by adjusting air pressure, specifically on their left-side tires. With an already “low” minimum recommended pressure of 12 psi on the left-sides, teams that go below that level risk over-deflecting the sidewall and damaging the tire to the point of air loss. Goodyear made a construction update to this left-side tire for 2020, making it more robust, but teams must still be cognizant of their pressures. Another note about this tire set-up – it is the same one that all NASCAR teams will run on championship weekend at Phoenix Raceway in November. Undoubtedly, teams will use this race as somewhat of a test to prepare for a potential final four appearance.
“For Cup teams, they come back to Loudon on the same tire set-up they’ve run there and at Phoenix for the past two seasons,” said Greg Stucker, Goodyear’s director of racing. “That gives teams a chance to build a notebook on this set-up and understand what works and where the edge of the envelope is. Left-side pressures are important at Loudon as teams search for grip. Especially without practice, having raced on this set-up before will help teams know that they need to respect our minimum recommended pressures.”
Notes – Cup teams return to New Hampshire on 2020 tire set-up: Both NASCAR Cup and Xfinity Series teams will run the same tire set-up at New Hampshire this weekend . . . this is the same combination of left- and right-side tires that Cup teams ran at this track last July . . . teams in both of these series have also run this same tire set-up at Phoenix since the beginning of 2020 . . . for Xfinity teams, compared to what was run at New Hampshire in their last race at the track in July 2019, this tire set-up features compound changes on both sides of the car (more grip and wear) and a construction update on the left-side . . . as on most NASCAR ovals one mile or less in length, teams will not run inner liners in their tires at New Hampshire.
— Goodyear Racing —