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Tread Wear Indicators
TREAD WEAR INDICATORS
Tread wear indicators are molded into the bottom of the tread grooves. When tread depth is 1.6 mm (1/16 in.), the tread wear indicators will appear as a 13 mm (1/2 in.) band (3).
Tire replacement is necessary when indicators appear in two or more grooves or if localized balding occurs.