The ornamental design for a tire tread, as shown and described.
FIG. 1 is a perspective view of a tire tread showing our new tread pattern,
it being understood that the tread pattern is repeated uniformly
throughout the circumference of the tire;
FIG. 2 is an enlarged fragmentary front elevation view of a first
embodiment of the tire tread of FIG. 1; and,
FIG. 3 is an enlarged fragmentary front elevation view of a second
embodiment thereof, it being understood that the tread pattern is repeated
uniformly throughout the circumference of the tire in a manner similar to
that shown in FIG. 1.
The broken lines defining the tire inner bead and sidewall are for
illustrative purposes only and form no part of the claimed design.