FIG. 1 is a perspective view of the set of reinforcement ribs for bicycle frame, shown as they might optionally be used with surrounding structure, which is shown in broken lines for illustrative purposes only and forms no part of the claimed design;
FIG. 2 is a left side view thereof, the other side view being a mirror image of that shown;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a front view thereof; and,
FIG. 6 is a rear view thereof.