Apparatus for washing bicycles

. The present invention concerns an apparatus for washing bicycles, in particular two-wheeled bicycles. In particular, the present invention concerns an apparatus (1) for washing bicycles, comprising a casing (2) in which a washing chamber (3) is housed, the washing chamber (3) having washing means arranged inside it, the casing (2) having an opening (4) able to be closed by means of a door (5) carried out by actuator means (7), characterised in that the door (5) comprises a loading board (11) of the bicycle, so that, when the door (5) is closed, the bicycle is arranged in substantially vertical position inside the washing chamber (3).