The ornamental design for a rearcowl for motorcycle, as shown and described.
FIG. 1 is a perspective view from the front side of a rear cowl for motorcycle.
FIG. 2 is a perspective view from the rear side thereof.
FIG. 3 is a perspective view from the front side thereof.
FIG. 4 is a perspective view from the rear side thereof.
FIG. 5 is a front elevation view thereof.
FIG. 6 is a rear elevation view thereof.
FIG. 7 is a top plan view thereof.
FIG. 8 is a bottom plan view thereof.
FIG. 9 is a right side elevation view thereof.
FIG. 10 is a left side elevation view thereof; and,
FIG. 11 is a referential view showing use thereof.
The broken line showing of a motorcycle in FIG. 11 and portions of the rear cowl in FIGS. 1-10 are for the purposes of illustrating environmental structure and portions of the article of manufacture that forms no part of the claimed design.