The ornamental design for a tire, as shown and described.
FIG. 1 is a side perspective view of a tire showing the new design, it being understood that the tread pattern is repeated throughout the circumference of the tire;
FIG. 2 is a front view thereof, the opposite side being identical thereto; and,
FIG. 3 is a side elevation view of the left side thereof, the right side elevation being identical thereto.
The broken lines in the drawings depict boundaries of the claim and form no part thereof.