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, it
being understood that the pattern repeats uniformly throughout the
circumference of the tread;
FIG. 2 is a front elevational view thereof; and,
FIG. 3 is a side elevational view thereof, the opposite side elevational
view being identical thereto.
In the drawings, the broken lines defining the sidewall and inner bead and
the peripheral boundary between the tire tread and the sidewall are for
illustrative purposes only and form no part of the claimed design.