12.5/80-18 (2-Tires) Road Crew Tires, 12.5/80-18 Backhoe Loader tires 16 ply rating. Total 2 tires. Enter 1 in quantity box to purchase 2 tires. 12.5/80-18 Tread lugs deliver excellent traction in muddy soil conditions. Backhoe / loader Tire Specifications: Section Width 12.5 Ply Rating 12 Load Range F Overall Diameter 36.8 Max Air Pressure 53 Tread Depth 32/32nds.