Goodyear By the Numbers: Martinsville

Last week at Fontana, we had a lot of news about tires.

This week at Martinsville, that likely won't be the case. The track is 1.474 miles shorter than Auto Club Speedway, has a lot different load and wear characteristics and has been smooth for many years now, though the recent harsh winter (for Virginia) might have added a bit of grit to the joint.

Here are the Goodyear Tire specs for this weekend, and please note the recommended pressures for all four biscuits.

NASCAR Sprint Cup Series -- Race No. 6 – STP 500

NASCAR Camping World Truck Series -- Race No. 2 – Kroger 250

Martinsville Speedway (0.526-mile oval) – Martinsville, Va.

Fast Facts for March 28-30, 2014

Tire: Goodyear Eagle Short Track Radials

Set limits: Sprint Cup: 5 sets for practice/qualifying, and 11 sets for the race;

Camping World Truck: 5 sets for the event, with an additional 2 sets for "extra" practice time on schedule

Tire Codes: Left-side -- D-4588; Right-side -- D-4590

Tire Circumference: Left-side -- 87.5 in. (2,222 mm); Right-side --

88.6 in. (2,250 mm)

Technical Inspection Inflation: Left Front -- 25 psi; Left Rear -- 25 psi

Right Front -- 25 psi; Right Rear -- 25 psi

Minimum Recommended Inflation: Left Front -- 10 psi; Left Rear -- 10 psi;

Right Front -- 23 psi; Right Rear -- 22 psi

Notes: Teams in both the NASCAR Sprint Cup and Camping World Truck Series will run the same Goodyear tire codes at Martinsville this weekend . . . this is the same combination of left- and right-side tires that these teams ran twice each at this track last season . . .Martinsville is the only track at which NASCAR teams run this left-side tire code (D-4588) . . . this right-side tire code (D-4590) was run on all four tire positions by NASCAR teams on all road courses in 2013 . . . as on most NASCAR ovals one mile or less in length, teams will not run inner liners in their tires at Martinsville.