The ornamental design for a tire, as shown and described.
FIG. 1 is a front-right-top perspective view of a tire showing my new design;
FIG. 2 is a front elevational view thereof, the opposite side being a mirror image; and,
FIG. 3 is a right elevational view thereof, the opposite side being a mirror image.
In the drawings, the broken lines depict environmental subject matter that does not form part of the claim. The dark stippled surface shading indicates the plain tire surface upon which the tread blocks are arrayed.