The ornamental design for a tricycleframe, as shown and described.
FIG. 1 is a perspective view of a tricycle frame showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view thereof as part of a fully assembled motorized tricycle.
The broken lines in the drawings illustrate parts of an environmental motorized tricycle and portions of the tricycle frame that form no part of the claimed design.