Pedal-assisted electric bike, comprising at least an electric motor and at least a battery, wherein the battery comprises electric charge accumulation means which can be connected to said electric motor and electronic processing means suitable for managing and controlling said battery and/or said electric bike, wherein said electronic processing means comprise: - at least a storage unit of at least an identification code of said battery and/or of said electric bike; - at least a communication unit suitable for communicating with at least an external control device; - checking means operatively associated with said storage unit and with said communication unit and suitable for checking if at least an identification code received by said communication unit and sent by said control device corresponds to said identification code stored on the storage unit; - activation/deactivation means suitable for activating said electric bike if said identification code received from the external control device corresponds to said identification code stored on the storage unit; characterized by the fact that it comprises a single container body containing said electric charge accumulation means and said electronic processing means and fastened to the frame of the electric bike, by the fact that said electronic processing means comprise an additional communication unit configured for communicating with at least one remote processing unit and a location device for locating the position of said electric bike, and by the fact that said communication unit comprises at least a radio-frequency receiver suitable for receiving said identification code from said control device, said control device being composed of a radio-frequency identification device, and in that said activation/deactivation means are associated with braking means of said electric motor, wherein said braking means are normally active, so as to make said electric bike unusable, and in the event of a user, using said control device, sends a signal containing an identification code to said communication unit, then: - said checking means checks whether the received identification code corresponds to said identification code stored on the storage unit; - if the identification code corresponds, then said checking means commands said activation/deactivation means to deactivate the braking means, thus allowing the release of the electric motor and the use of the electric bike A. - at least a storage unit of at least an identification code of said battery and/or of said electric bike; - at least a communication unit suitable for communicating with at least an external control device; - checking means operatively associated with said storage unit and with said communication unit and suitable for checking if at least an identification code received by said communication unit and sent by said control device corresponds to said identification code stored on the storage unit; - activation/deactivation means suitable for activating said electric bike if said identification code received from the external control device corresponds to said identification code stored on the storage unit; - said checking means checks whether the received identification code corresponds to said identification code stored on the storage unit; - if the identification code corresponds, then said checking means commands said activation/deactivation means to deactivate the braking means, thus allowing the release of the electric motor and the use of the electric bike A.