Take on any trail conditions and win with the Ambush by CST. A directional front tread design offers predictable cornering with straight-line stability. Rear knobs extend across the entire section width for supreme traction, stability and control. With a durable 4-ply rating, the Ambush provides puncture resistance and reduces tire roll. Durable 4-ply rating construction provides puncture resistance and reduces tire roll. Directional tread offers predictable cornering with straight-line stability. Knobs extend across section width for maximum traction and control. Tire Specifications: Rim Size (inches): 10 x 5. Ply rating: 4. Overall diameter (inches): 21.0. Section width (inches): 7.00. Tire pressure (PSI): 5. Max load (pounds): 205. Tread Depth (inches): 15/32.