Anti-theft device for a bicycle

An anti-theft device for a bicycle, comprising:

• a fork unit having a first fork bar and a second fork bar, said first fork bar having a passage and said second fork bar having a receiving opening;
• a securing element for being disposed in said fork unit and for passing through said first fork bar in a region of said passage, said securing element for engaging in said receiving opening of said second fork bar, said securing element passing through a spoke region of a front wheel of the bicycle, said securing element having an engagement contour at a first end that enters into said receiving opening;
• a locking unit being disposed in said second fork bar and having an electromechanical drive, said locking unit for being brought into a locking state or into an unlocking state, said locking unit having a locking contour connected to said electromechanical drive, said locking contour engaging in said engagement contour in the locking state and the engaging of said locking contour in said engagement contour being released in the unlocking state;
• said second fork bar being equipped, on an outer side thereof, with a molded body having an engagement section, said molded body being constructed for being brought to a coupling state with a coupling element of a bicycle stand, in the coupling state said engagement section engaging in an undercut section of the coupling element, said securing element being constructed for passing through said receiving opening of said second fork bar and through said molded body, in the locking state, with said securing element in an engaged state with a supporting opening of the coupling element in the coupling state, the coupling state being secured by the engaged state;
• an electronic control unit being connected to said electromechanical drive, for controlling said electromechanical drive and providing the unlocking state.