Brand: Armstrong Model: Blu-Trac HP Size: 255-45R18 255/45-18 255/45R18 255/45/18 255-45-18 255 45 18 2554518 Tread Depth: 10/32 Treadlife: 45,000 miles Season: All Season Performance: High Performance Car Type: Truck/SUV Load and Speed Rating: 103W Speed Rating Description: Speed Rated Up to 168 mph Section Width: 255 Aspect Ratio: 45 Rim Diameter: 18 Production Year (DOT): N/A