ET Tire 27.5/4.0-15 Revs/Mile 760 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 197: 3 Circumference (in): 85. 7 Clean Oil: No Gross Weight (lb): 12. 024 Inflated Overall Diamter (in): 27. 28 Inflated Section Width (in): 6. 8 Inflated Tread Width (in): 4. 61 Maximum