ET Tire 22.5/4.5-15 Revs/Mile 921 Mickey ThompsonComplete line of front tires with applications for cars, dragsters, and land speed racers. Compliments our ET Drag drive tires for a complete race tire package. Ultra lightweight design reduces rolling resistance. Tubeless construction. Details: Centerline Tread Depth 76: 3 Circumference (in): 70. 7 Clean Oil: No Gross Weight (lb): 11. 01 Inflated Overall Diamter (in): 22. 52 Inflated Section Width (in): 5. 1 Inflated Tread Width (in): 4. 09 Maximum