Brand: Royal Black Model: Racing Trac Size: 225-55R18 225/55-18 225/55R18 225/55/18 225-55-18 225 55 18 2255518 Tread Depth: 7/32 Treadlife: N/A Season: All Season Performance: High Performance Car Type: Truck/SUV Load and Speed Rating: 102W Speed Rating Description: Speed Rated Up to 168 mph Section Width: 225 Aspect Ratio: 55 Rim Diameter: 18 Production Year (DOT): N/A