Rear wheel axle, as well as bicycle frame and rear wheel for a bicycle

A bicycle, comprising:

• a frame with each of a front fork, a rear fork, and an axle housing;
• a front wheel and a rear wheel, fitted respectively to the front and rear forks;
• a drive axle bearing-mounted in the axle housing;
• a front sprocket;
• a rear axle assembly, including:
• a plurality of rear sprockets connected to a driver body for driving the driver body in rotation, and
• an electrically actuated rear derailleur,
• the driver body being connected to a wheel hub of the rear wheel via a transmission, for driving the wheel hub in rotation,
• the transmission including at least two drives between the driver body and the wheel hub,
• said transmission provided with an electric actuator of the transmission for switching between the at least two drives, and
• the wheel hub and the transmission being positioned on a wheel axle of the rear wheel;
• a chain threaded around the front and rear sprockets;
• and
• operating means for operating the electric actuator of the transmission,
• wherein the operating means are electrically coupled to the electric actuator of the transmission and to an electric actuator of the rear derailleur, and
• wherein a storage element for storing electrical energy is coupled to at least one of the electric actuator of the transmission and the operating means.