The ornamental design for a bicycle mechanical cablehousing, as shown and described.
FIG. 1 is a side elevational view of a mechanical cable housing showing my
new design, the derailleur gearshift mechanism shown in broken lines are
for illustrative purposes only and form no part of the claimed design;
FIG. 2 is an enlarged fragmentary top plan view thereof; and,
FIG. 3 is a right end view of the bicycle mechanical cable housing of the
present invention, the left end view being a mirror image thereof.