The ornamental design for a tire tread, as shown and described.
FIG. 1 is a perspective view of a tire tread showing my new tread design,
it being understood that the tread pattern is repeated uniformly
throughout the circumference of the tire tread with the opposite side
being the same as for the side shown; and,
FIG. 2 is an enlarged fragmentary front elevation view of the tire tread
illustrated in FIG. 1.
The broken line showing of a tire sidewall and inner bead is for
illustrative purposes only and forms no part of the claimed design.
In the drawings, the dark strippled surface shading represents the recessed
portion of the tread grooves, having a depth as best shown along the right
edge of FIG. 1.