Brand: Royal Black Model: Racing Trac Size: 265-40R21 265/40-21 265/40R21 265/40/21 265-40-21 265 40 21 2654021 Tread Depth: 7/32 Treadlife: N/A Season: All Season Performance: High Performance Car Type: Truck/SUV Load and Speed Rating: 105Y Speed Rating Description: Speed Rated Up to 186 mph Section Width: 265 Aspect Ratio: 40 Rim Diameter: 21 Production Year (DOT): N/A