Brand: Royal Black Model: Racing Trac Size: 235-45R18 235/45-18 235/45R18 235/45/18 235-45-18 235 45 18 2354518 Tread Depth: 7/32 Treadlife: N/A Season: All Season Performance: High Performance Car Type: Passenger Load and Speed Rating: 98W Speed Rating Description: Speed Rated Up to 168 mph Section Width: 235 Aspect Ratio: 45 Rim Diameter: 18 Production Year (DOT): N/A