The ornamental design for a bicyclelockmountingbracket, as shown and described.
FIG. 1 is a top, front and right side perspective view of a bicycle lock
mounting bracket showing my new design with connecting bicycle handlebars
and lock shown in phantom lines;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a rear elevational view thereof; and,
FIG. 5 is a right side elevational view thereof, the left side being a
mirror image of the right side.