GOODYEAR OPTITRAC R-1W, Self-cleaning tread action promoted by 45 degree tread lug angles, Up to 25% deeper than conventional R-1 tires
Search terms: 420 70R28 Goodyear optitrac, 42070R28Goodyearoptitrac, 7028GOODYEAROPTITRAC, Tractor Tyre, Farm Tyre, Agricultural Tyre.