FIG. 1 is a front perspective view of a tire tread showing my new design;
FIG. 2 is a front view thereof. the top view and the bottom view being identical;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a fragmentary enlarged front view;
FIG. 7 is a s a cross sectional end view taken along line 7-7 in FIG. 6;
FIG. 8 is a s a cross sectional end view taken along line 8-8 in FIG. 6;
FIG. 9 is a s a cross sectional end view taken along line 9-9 in FIG. 6;
FIG. 10 is a s a cross sectional end view taken along line 10-10 in FIG. 6;
FIG. 11 is a s a cross sectional end view taken along line 11-11 in FIG. 6;
FIG. 12 is a front perspective view of a second embodiment of a tire tread showing my new design;
FIG. 13 is a front view thereof, the top view and the bottom view being identical;
FIG. 14 is a right side view thereof;
FIG. 15 is a left side view thereof;
FIG. 16 is a rear view thereof;
FIG. 17 is a fragmentary enlarged front view;
FIG. 18 is a s a cross sectional end view taken along line 18-18 in FIG. 17;
FIG. 19 is a s a cross sectional end view taken along line 19-19 in FIG. 17;
FIG. 20 is a s a cross sectional end view taken along line 20-20 in FIG. 17; and,
FIG. 21 is a s a cross sectional end view taken along line 21-21 in FIG. 17.
The broken lines in the drawings illustrate features of a tire 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, 9,10, 11, 18, 19, 20 and 21.