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 has a pattern repeated
over the outer circumference and shoulder of a tire, 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.