Exercise bicycle

FIG. 1 is an isometric view of the exercise bicycle;

FIG. 2 is a first side view of the exercise bicycle;

FIG. 3 is a front view of the exercise bicycle;

FIG. 4 is a second side view of the exercise bicycle;

FIG. 5 is a rear view of the exercise bicycle;

FIG. 6 is a top view of the exercise bicycle; and,

FIG. 7 is a bottom view of the exercise bicycle.

The broken lines illustrate portions of the exercise bicycle which form no part of the claimed design.