The ornamental design for a motorcycle, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front view of a motorcycle showing my new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a front left perspective view thereof; and,
FIG. 7 is a rear right perspective view thereof.
The broken lines enclosing the white surfaces illustrate portions of the motorcycle that form no part of the claimed design.