The ornamental design for a tire tread, as shown and described.
FIG. 1 is a perspective view of a tire tread showing my new tire tread
design, it being understood that the tire tread pattern is repeated over
the outer circumference and shoulder of the tread, the opposite side being
the same as that illustrated; and,
FIG. 2 is a enlarged fragmentary front elevation view of the tire tread
thereof.
The broken line disclosure of a tire sidewall and inner bead is for
illustrative purposes only and forms no part of the claimed design.