FIG. 1 is a perspective view of a stationary exercise bicycle having a rigid frame showing my new design;

FIG. 2 is a right side view of FIG. 1, the left side view being a mirror image thereof;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a front view of FIG. 1;

FIG. 5 is a rear view of FIG. 1;

FIG. 6 is a perspective view of a an alternative embodiment of a stationary exercise bicycle having a rigid frame showing my new design;

FIG. 7 is a right side view of FIG. 6, the left side view being a mirror image thereof;

FIG. 8 is a top view of FIG. 6;

FIG. 9 is a front view of FIG. 6; and,

FIG. 10 is a rear view of FIG. 6.