PNEUMATIC TIRE

The outer diameter (OD) of the pneumatic tire (10) is 350 mm or more and 600 mm or less, and the tire width (SW) is 125 mm or more and 255 mm or less. An aspect ratio of the pneumatic tire (10) is 40% or more and 75% or less, a rim diameter (RD) of a rim wheel (100) is 10 inches or more and 22 inches or less, and a rim width (RW) of the rim wheel is 3.8 inches or more and 8 inches or less. The pneumatic tire (10) satisfies the relationship of 0.78 ≤ RW/SW ≤ 0.99 and 0.56 ≤ RD/OD ≤ 0.75. The carcass has a plurality of carcass cords arranged at intervals, the carcass cords are formed of prescribed organic fibers, and the breaking strength of the carcass cords is ≥ 2.2 kN/cm.