Tread Wear Indicators

Tread wear indicators are molded into the bottom of the tread grooves. When tread depth is at 1.6 mm (1/16 inch), the tread wear indicators will appear as a 13 mm (1/2 inch) band across the tread groove in the tire.

Fig. 2:

Tire replacement is necessary when wear indicators appear in two or more tread grooves or if localized balding occurs.