Brand: National Model: Road Max ST Size: 235-85R16 235/85-16 235/85R16 235/85/16 235-85-16 235 85 16 2358516 Tread Depth: 8/32 Treadlife: N/A Season: All Season Performance: Highway Car Type: Trailer Load and Speed Rating: 125/121M Speed Rating Description: Speed Rated Up to 81 mph Section Width: 235 Aspect Ratio: 85 Rim Diameter: 16 Production Year (DOT): N/A