The ornamental design for a tire tread and sidewall, substantially as shown and described.
FIG. 1 is a perspective view of tire tread in accordance with the present invention;
FIG. 2 is a side view thereof;
FIG. 3 is an enlarged fragmentary front view thereof; and,
FIG. 4 is an enlarged fragmentary front view thereof.
The pattern repeats uniformly throughout the circumference of the tread. Each side of the tire as shown in FIG. 3 is a mirror image of the other side. The elements shaded in black on the sidewall of the tire represent a contrast in color. The lines defining the inner bead, the peripheral boundary between the inner bead and the sidewall, and the peripheral boundary between the sidewall and the tire tread are to depict environmental subject matter and form no part of the claimed design. The lines defining the wording “Americus” and “Altitude G/T” illustrate the portions of the tire tread and sidewall which form no part of the claimed design.