The ornamental design for a motorizedtricycle, as shown and described.
FIG. 1 is a front, perspective view of a motorized tricycle showing the new design;
FIG. 2 is a front view of the motorized tricycle shown in FIG. 1;
FIG. 3 is a left side elevational view of the motorized tricycle shown in FIG. 1 (the right side elevational view of the motorized tricycle is a mirror image of the view shown in FIG. 3); and,
FIG. 4 is a rear view of the motorized tricycle shown in FIG. 1.