§ 73.03 PARKING.
   No person shall park a bicycle upon a street other than upon the roadway against the curb, at the curb in such a manner as to afford the least obstruction to pedestrian traffic or in a bicycle rack provided to support the bicycle. No bicycle shall be parked upon the sidewalk against a building, laid down upon the sidewalk, or parked against or secured to any fire hydrant.
Penalty, see § 73.99