Bicycle control system

A bicycle control system comprising:

• a first electrical shifting device comprising:
• a first base member configured to be attached to a bicycle body;
• a first movable member movable relative to the first base member;
• a first actuator configured to move the first movable member relative to the first base member for changing a gear ratio of a bicycle;
• and
• a first controller including a first processor configured to control the first actuator and a first memory storing a transmission route including at least one synchro-shift points;
• a second electrical shifting device comprising:
• a second base member configured to be attached to the bicycle body;
• a second movable member movable relative to the second base member;
• a second actuator configured to move the second movable member relative to the second base member for changing the gear ratio of the bicycle;
• and
• a second controller including a second processor configured to control the second actuator;
• and
• an operating device having a wireless transmitter, wherein the bicycle control system has a normal mode and a synchro mode such that:
• in the normal mode, the first electrical shifting device and the second electrical shifting device are independently controlled based on shift signals from the operating device without using the transmission route;
• and
• in the synchro mode, the first electrical shifting device and the second electrical shifting device are synchronously controlled in accordance with the transmission route in response to a single shift signal from the operating device, the single shift signal being a synchro-operating signal, the transmission route including the least one synchro-shift points at which the first controller and the second controller respectively synchronously control the first actuator and the second actuator to change gears at gear positions corresponding to the at least one synchro-shift points in response to the synchro-operating signal, and
• the operating device, the first electrical shifting device, and the second electrical shifting device are all attached to the same bicycle body.