The 611 front features directional tread design. Paired with the 718 rear (sold separately), they make an ideal matched set with excellent adhesion in both wet and dry conditions. Aramid belt for added stability under high loads. 4-ply (except 21") nylon carcass. H-rated (130 MPH) tubeless. Tire Specifications: Load / speed index: 61H. Recommended rim (inches): 2.15. Overall diameter (inches): 26.10. Overall width (inches): 3.74. Maximum load (pounds) / PSI: 567 @ 36 PSI. Construction: Bias / tubeless (T/L).