FIG. 1 is a front perspective view of a tire tread showing my new design;
FIG. 2 is a front view thereof, the back view being a mirror image thereof;
FIG. 3 is a top view thereof, the bottom view being identical;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a fragmentary enlarged front view thereof;
FIG. 7 is a cross-section view taken along line 7-7 in FIG. 6;
FIG. 8 is a cross-section view taken along line 8-8 in FIG. 6; and,
FIG. 9 is a cross-section view taken along line 9-9 in FIG. 6.
Broken lines show environmental portions of a tire tread that are not being claimed, and form no part of the claimed design. The light stippled surface shading represents the surface of the tire tread, and the dark stippled surface shading represents the recessed portion of the tread grooves, having the depth as shown in FIGS. 7, 8 and 9.