Brand: Federal Model: 595RS-PRO Size: 225-40R18 225/40-18 225/40R18 225/40/18 225-40-18 225 40 18 2254018 Tread Depth: 7/32 Treadlife: N/A Season: Summer Performance: High Performance Car Type: Racing Load and Speed Rating: 92Y Speed Rating Description: Speed Rated Up to 186 mph Section Width: 225 Aspect Ratio: 40 Rim Diameter: 18 Production Year (DOT): N/A