DRV-OS IX Recommended for on-highway Regional and Pickup/Delivery drive applications. Pattern provides durability, versatility, and wear. Tread pattern provides 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 225/70R19.5 128/126M 14 G 6.75 3750 110 3970 110 31.93 8.90 18.3 245/70R19.5 135/133L 16 H 7.50 4540 120 4805 120 33.03 9.76 19.5