An electric motorcycle (100) comprises: an electric motor (M) disposed in a hub assembly (1) of a wheel (R) of the motorcycle; a plurality of internal cables (3) connected to the electric motor, a first connector assembly (4) disposed in the hub assembly (1) and connecting the internal cables (3) to a plurality of external cables (5), a second connector assembly (6) disposed on the suspension (F) and connecting the external cables (5) to a plurality of upper cables (W), a plurality of rigid tubes (C) inside which said upper cables (W) are disposed in such a way that the upper cables (W) come out of the rigid tubes (C) in correspondence of an upper part of the suspension (F), support and guide means (S) connected to the suspension and suitable for supporting and guiding the rigid tubes, and an electric power system and a control unit disposed in the motorcycle and connected to the upper cables (W) coming out of the rigid tubes (C).