The ornamental design for a tire, as shown and described.
FIG. 1 is a partial perspective view of a tire showing my new design, it being understood that the tread pattern is repeated throughout the circumference of the tire as shown schematically by solid lines, the opposite side being the same as that shown.
FIG. 2 is an enlarged partial side elevation view of my new tire, it being understood that the other side is identical thereto; and,
FIG. 3 is an enlarged partial front elevation view of my new tire, it being understood that the tread pattern is repeated throughout the circumference of the tire as shown schematically by solid lines in FIG. 1.