Bicycle Frame

FIG. 1 is a front-right side perspective view of a bicycle frame embodying my new design;

FIG. 2 is a top-rear-left side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a left side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The portions depicted in broken dashed lines of even length illustrate portions of the bicycle frame that form no part of the claimed design. The broken dashed lines of uneven length illustrate the boundary of the claimed design and form no part of the claimed design.