The ornamental design for a tire tread, as shown and described.
FIG. 1 is a perspective view if a tire tread showing my new design, it
being understood that the tread pattern is repeated throughout the
circumference of the tire tread, the opposite side being the same as that
illustrated; and
FIG. 2 is an enlarged fragmentary plan view of the tire tread thereof
further showing my new design.
The broken line disclosure 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 stippled surface shading represents the recessed
portion of the tread grooves, having a depth as best shown along the right
tread shoulder in FIG. 1 .