Brand: Ironman Model: RB-SUV Size: 255-70R18 255/70-18 255/70R18 255/70/18 255-70-18 255 70 18 2557018 Tread Depth: N/A Treadlife: 55,000 miles Season: All Season Performance: Highway Car Type: Truck/SUV Load and Speed Rating: 113H Speed Rating Description: Speed Rated Up to 130 mph Section Width: 255 Aspect Ratio: 70 Rim Diameter: 18 Production Year (DOT): N/A