Engineered and tested with Harley-Davidson® to provide maximum performance. The D402 is the approved Harley-Davidson® touring tire. Built with a three-ply polyester casing with two fiberglass belts, the D402 helps provide stability for touring riding. Computer-optimized tread profile with offset center groove improves rider confidence over rain grooves and steel-grated bridges, while helping to reduce cupping for enhanced wear. Tubeless. Made in U.S.A. Tire Specifications: Load / speed index: 63H. Sidewall: Blackwall. Recommended rim size (inches): 3.50 (3.00). Overall diameter (inches): 25.27. Overall width (inches): 5.18. Full tread depth (inches): 6/32. Maximum load (pounds) / PSI: 600 @ 41. Construction: Bias.