The ornamental design for a tire tread, as shown and described.
FIG. 1 is a perspective view of a tire tread showing our new design, the
tread pattern being repeated over the outer circumference of the tire with
the other side of the tire tread, illustrated by solid lines, being
substantially the same; and,
FIG. 2 is an enlarged fragmentary view of our tire tread as illustrated in
FIG. 1.
The broken line disclosure of a tire sidewall and inner bead is for
illustrative purposes only and forms no part of the claimed design.