The ornamental design of the tire tread, as shown and described.
FIG. 1 is a top and right side perspective view of a tire tread, it being understood that the tread is a repeating pattern;
FIG. 2 is an enlarged segment of the claimed area of the tire tread as shown in FIG. 1;
FIG. 3 is a top and left side perspective view of the tire tread;
FIG. 4 is an enlarged segment of the claimed area the tire tread as shown in FIG. 3;
FIG. 5 is a top plan view of the tire tread;
FIG. 6 is an enlarged segment of the claimed area of the tire tread as shown in FIG. 5;
FIG. 7 is a right side elevation view of the tire tread;
FIG. 8 is an enlarged segment of the claimed area of the tire tread as shown in FIG. 7;
FIG. 9 is a left side elevation view of the tire tread; and,
FIG. 10 is an enlarged segment of the claimed area of the tire tread as shown in FIG. 9.
In the drawings, the equally spaced broken lines depict environmental subject matter only and form no part of the claimed design. Unequally spaced broken lines, i.e. the “dot and dash” lines in the drawings, define the bounds of the claimed design and form no part thereof.