The ornamental design for a tire, as shown and described.
FIG. 1 is a top perspective view of a tire showing a new design;
FIG. 2 is a top plane view thereof;
FIG. 3 is an enlarged top plane view of a portion thereof;
FIG. 4 is a side view thereof; and,
FIG. 5 is an opposite side view thereof.
The dot-dot-dash broken lines depict the location and borders of the fragmentary view and form no part of the claim. The dash-dash broken lines depict unclaimed portions of the tire that form no part of the claimed design.