I claim the ornamental design for a bicycle brake rotor, as shown and described.
FIG. 1 is a front perspective view of a bicycle brake rotor showing our new design; and,
FIG. 2 is a top plan view thereof.
The broken lines in the drawings illustrate portions of the bicycle brake rotor that form no part of the claimed design. Additionally, the dash-dot broken lines illustrate boundaries of the claimed design. The portions of the bicycle wheel rim shown in dashed lines illustrate environment and form no part of the claimed design.