The Raven radial was specifically designed for long life. The Raven provides superior riding comfort while its tread compound gives high grip on both wet and dry roads. Highest tread life of Shinko sport-performance radials. W-speed rated (168 MPH). Aramid belted. DOT approved. Tire Specifications: Load / speed index: 58W. Recommended rim (inches): 3.50. Overall diameter (inches): 23.62. Overall width (inches): 4.80. Maximum load (pounds) / PSI: 520 @ 42 PSI. Construction: Radial.