DRV-OS V Recommended for on-highway Regional and Pickup/Delivery drive applications. Wide circumferential grooves reduce hydroplaning. Open Shoulder tread pattern delivers traction in all weather conditions. Size Load Index & Speed Symbols PR Load Range Rim Max load and Max Air (lbs&psi) Overall Diameter (in) Section Width (in) Tread Depth (32nds) Dual Single lbs psi lbs psi 215/75R17.5 135/133L 16 H 6.00 4540 123 4805 123 30.2 8.35 18.9 235/75R17.5 143/141J 18 J 6.75 5675 127 6005 127 31.38 9.17 19.5 245/70R17.5 143/141J 18 J 7.50 5675 127 6005 127 31.06 9.76 22.7 225/70R19.5 125/123M 12 F 6.75 3415 95 3640 95 31.93 8.90 18.9 225/70R19.5 128/126M 14 G 6.75 3750 110 3970 110 31.93 8.90 18.9 245/70R19.5 133/131M 14 G 7.50 4300 110 4540 110 33.03 9.76 20.8 245/70R19.5 135/133M 16 H 7.50 4540 120 4805 120 33.03 9.76 20.8 285/70R19.5 150/148J 18 J 8.25 6940 130 7390 130 35.24 11.14 20.2