Brand: Trailer King Model: RST Size: 225-75R15 225/75-15 225/75R15 225/75/15 225-75-15 225 75 15 2257515 Tread Depth: 8/32 Treadlife: N/A Season: All Season Performance: Highway Car Type: Trailer Load and Speed Rating: 113/108N Speed Rating Description: Speed Rated Up to 87 mph Section Width: 225 Aspect Ratio: 75 Rim Diameter: 15 Production Year (DOT): N/A