The ornamental design for a suitcase for motorcycle, as shown and described.
FIG. 1 is a Front elevational view of a suitcase for motorcycle showing my new design;
FIG. 2 is a Rear elevational view thereof;
FIG. 3 is a Right side view thereof;
FIG. 4 is a Left side view thereof;
FIG. 5 is a Top plan view thereof;
FIG. 6 is a Bottom plan view thereof; and,
FIG. 7 is a Perspective view thereof.
The broken lines illustrate portions of a suitcase for motorcycle and the “TRIPFELLA” text and mountain logo trademarks and form no part of the claimed design.
“TRIPFELLA” text and mountain logo are trademarks registered to Du Rui of Chongqing City CHINA.