Goodyear Fast Facts -- Martinsville

Monster Energy NASCAR Cup Series -- Race No. 6 - STP 500
NASCAR Camping World Truck Series - Race No. 4 - Alpha Energy Solutions 250
Martinsville Speedway (0.526-mile oval) - Martinsville, Va.
Fast Facts for March 24-25, 2018

Tire: Goodyear Eagle Short Track Radials

Set limits:
Cup: 3 sets for practice, 1 set for qualifying/start of race and 8 sets for race;
Truck: 6 sets for the event

Tire Codes:
Left-side -- D-4588;
Right-side -- D-4722

Tire Circumference:
Left-side -- 2,221 mm (87.44 in.);
Right-side -- 2,251 mm (88.62 in.)

Minimum Recommended Inflation:
Left Front -- 10 psi; Left Rear -- 10 psi;
Right Front -- 23 psi; Right Rear -- 22 psi

Storyline - Cool temps, hot action expected at Martinsville: Temperatures at Martinsville Speedway are not expected to get above the low 50-degree range this weekend, which in the past would have made it difficult for the track to take on rubber. Goodyear tested prior to the 2017 spring race and made an adjustment to the tread compound on the right-side tire to address just that. With Martinsville's two NASCAR weekends being run very early and very late in the season, cooler temperatures are the norm. The track's corners are concrete, which is more dense than the asphalt straightaways, making it more difficult for rubber to continuously adhere to the track surface. As last year's races proved, the new compound performed as expected, laying more rubber and creating multiple racing grooves and more side-by-side racing.
"This weekend, the temperatures in Southern Virginia are going to be what we've come to expect this time of year," said Greg Stucker, Goodyear's director of racing. "It's more difficult for track surfaces -- especially concrete - to take rubber in cooler temperatures. We formulated this right-side compound to lay more rubber in these types of conditions, and we got some great results right out of the box. Martinsville has tight corners and has always produced great racing, but being able to get the concrete surface to take rubber and create a second groove really enhanced things."

Notes - Goodyear returns to Martinsville on successful tire set-up: Teams in both the Monster Energy NASCAR Cup and NASCAR Camping World Truck Series will run the same tire set-up at Martinsville this weekend . . . this is the same tire set-up these teams ran twice at this track in 2017 . . . this left-side tire code (D-4588) has been run at this track since April 2013, while this right-side tire code (D-4722) debuted last April . . . this is the only track at which NASCAR teams will run either of these two tire codes . . . as on most NASCAR ovals one mile or less in length, teams will not run inner liners in their tires at Martinsville.

--- Goodyear Racing ---