The ornamental design for a motorcyclehandlebar, as shown and described.
FIG. 1 is a top perspective view of a motorcycle handlebar installed on a motorcycle showing our new design;
FIG. 2 is a top perspective view of the motorcycle handlebar shown in FIG. 1;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a partial section view taken along line 9-9 shown in FIG. 7;
FIG. 10 is a partial section view taken along line 10-10 shown in FIG. 7; and,
FIG. 11 is a partial section view taken along line 11-11 shown in FIG. 7.
The broken lines showing the motorcycle in FIG. 1 depicts environmental subject matter that forms no part of the claimed design; while the broken lines consisting of dash-dot-dash lines in the drawings depict the boundary of the claimed invention, and it is understood that the claim extends to the boundary that forms no part of the claimed design; while the remaining broken lines shown in the partial section views depict parts of the motorcycle handlebar that form no part of the claimed design.