FIG. 1 is a perspective view of a tire sidewall, showing the new ornamental design;
FIG. 2 is a front view of a tire sidewall, showing the new ornamental design;
FIG. 3 is a rear view of a tire sidewall, showing the new ornamental design;
FIG. 4 is a right side view of a tire sidewall, showing the new ornamental design;
FIG. 5 is a left side view of a tire sidewall, showing the new ornamental design;
FIG. 6 is a top view of a tire sidewall, showing the new ornamental design;
FIG. 7 is a bottom view of a tire sidewall, showing the new ornamental design;
FIG. 8 is a detailed view of the area 8-8 in FIG. 2, showing the new ornamental design;
FIG. 9 is a detailed view of the area 9-9 in FIG. 1, showing the new ornamental design;
FIG. 10 is a detailed view of a single pattern element of FIG. 8, showing the new ornamental design; and,
FIG. 11 is a detailed view of a single pattern element of FIG. 9, showing the new ornamental design.
The broken lines shown illustrate portions of the tire sidewall that form no part of the claimed design.