Abstract: A bicycle includes a frame and an electronic security device. The frame includes a hollow space and at least one opening. The hollow space is configured within the frame. The at least one opening is configured in the frame and the at least one opening is connected to the hollow space. The electronic security device is configured such that it is accommodated within the hollow space of the frame. The electronic security device includes a retractable locking shackle configured to assume a locked position and a retracted position by moving through the at least one opening configured in the frame. The locked position of the retractable locking shackle restricts a movement of a wheel of the bicycle and the retracted position enables free movement of the wheel of the bicycle.