FIG. 1 is an upper, left hand perspective view of a tire spike of our claimed design;
FIG. 2 is a front view of the tire spike of FIG. 1;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a top view thereof.