Abstract: The protective bike cover is a cover that provides protection from the elements during transport or storage of a bicycle. The cover is of one-piece design and is fabricated from a supple, highly stretchable waterproof or water-resistant material that is provided with a nylon tricot backing to minimize flapping. The cover includes openings therein for receiving such tie-down devices as locks, bungee cords or the like for attaching and securing the cover to a vehicle or storage rack.