The ornamental design for a tire tread, as shown and described.
FIG. 1 is a perspective view taken from a first side of a tire tread
showing my new tire tread design, it being understood that the tread
pattern is repeated over the outer circumference of the tire and tread
shoulder;
FIG. 2 is a perspective view taken from a second side of the tire tread
showing the new tire tread design of FIG. 1, it being understood that the
tread pattern is repeated over the outer circumference of the tire and
shoulder;
FIG. 3 is a perspective view taken from a first side of a tire tread
showing an alternate embodiment of my new tire tread design, it being
understood that the tread pattern is repeated over the outer circumference
of the tire and tread shoulder; and,
FIG. 4 is a perspective view taken from a second side of the tire tread
showing the alternate embodiment of the new tire tread design of FIG. 3,
it being understood that the tread pattern is repeated over the outer
circumference of the tire and shoulder.
The tire bead and sidewall are shown in broken lines for illustrative
purposes only and form no part of the claimed tire tread design.