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    Understanding Skid Wear

    Mismatched dual tires are wasteful and costly. Additional fuel expense and tire wear is the result of even a 1/8th inch tire circumference.

    The logic: First, compute the circumference of the tire. This is the actual distance each tire must travel as a dual.

    TIRE A: 480 rotations @ 10.996 ft. per rotation – 5280.0 FEET TIRE B: 480 rotations @ 11.028 ft. per rotation – 5295.7 FEET

    Subtract the difference to see how many skid feet per mile is wasted. Measuring how mismatched diameters affect performance.

    SKID FEET PER MILE – 15.7 FEET

    circumference