The ornamental design for a tire tread, as shown and described.
FIG. 1 is a fragmentary, perspective view of a tire tread, it being
understood that the pattern repeats uniformly throughout the circumference
of the tread, as shown schematically by solid lines;
FIG. 2 is a fragmentary, front elevational view thereof;
FIG. 3 is a fragmentary, side elevational view thereof shown at a reduced
scale, the opppsite side elevational view being a mirror image thereof;
and,
FIG. 4 is an enlarged, fragmentary, flat pattern development of the front
view thereof.
The broken line showing of the tire sidewall in the drawings is for
illustrative purposes only and forms no part of the claimed design.