Brand: Arroyo Model: Grand Sport A/S Size: 255-60R18 255/60-18 255/60R18 255/60/18 255-60-18 255 60 18 2556018 Tread Depth: 7/32 Treadlife: 40,000 miles Season: All Season Performance: Performance Car Type: Truck/SUV Load and Speed Rating: 112V Speed Rating Description: Speed Rated Up to 149 mph Section Width: 255 Aspect Ratio: 60 Rim Diameter: 18 Production Year (DOT): N/A