When converted to inches, 125/80R12 is equivalent to 19.9x4.9R12.
125/80R12 tire has a section width of 4.9 inches which is the measurement of tire's width from its inner sidewall to its outer sidewall. Rim diameter of 12 inches represents the size of the wheel the tire can be mounted on. Sidewall height of 3.9 inches (100 mm) is the measurement from the wheel rim to top of the tire tread. Overall diameter of 19.9 inches (505 mm) reflects the outer diameter of the tire and stands for tire height. Circumference of 62.5 inches (1585.7 mm) is the outer perimeter of the tire. Tire revolutions indicate the number of times a tire revolves while it covers the distance in miles or kilometers. 125/80R12 tire makes 1014 revolutions per mile (631 revolutions per kilometer).
Overall Diameter (Tire Height)
631 per km
1014 per mile
Best Prices on 125/80R12 Tires
125/80R12 Replacement Tire Sizes
Replacement tires have to be within 3% of the original tire's overall diameter. 125/80R12 tire can be replaced with 12 compatible tire sizes. Select optional plus size to see its specs.