Bicycle derailleur

1. A bicycle derailleur comprising:

a base member configured to be attached to a bicycle frame;

a movable member configured to be movable relative to the base member;

a linkage structure configured to movably couple the movable member to the base member;

a user interface configured to receive a user input to execute at least one of:

calibration in which a sensor is reset;

changing an assist operation of an assist driving unit;

changing information displayed in a display;

a recovering operation by an actuator of the bicycle derailleur;

a reset of a pairing operation between the bicycle derailleur and another component;

changing a shifting threshold used in an automatic shifting mode;

changing a communication channel through which the bicycle derailleur communicates with another component between a wired communication channel and a wireless communication channel;

changing a function assigned to an operating device separately provided from the bicycle derailleur;

a shut-down of a system of the bicycle derailleur;

a wake-up operation of the system of the bicycle derailleur;

a restart of the system of the bicycle derailleur;

an operation of at least one additional bicycle component of a plurality of additional bicycle components;

changing a shifting mode between the automatic shifting mode and a manual shifting mode; and

changing the shifting operation between a synchronized shifting mode and a non-synchronized shifting mode.

2. The bicycle derailleur according to claim 1 , wherein

the user interface includes a switch other than a push switch.

3. The bicycle derailleur according to claim 1 , wherein

the user interface includes a switch having a first switch status and a second switch status that is different from the first switch status,

the bicycle derailleur has a first derailleur status and a second derailleur status that is different from the first derailleur status,

the bicycle derailleur is in the first derailleur status while the switch is in the first switch status, and

the bicycle derailleur is in the second derailleur status while the switch is in the second switch status.

4. The bicycle derailleur according to claim 1 , wherein

the user interface includes a switch having a first switch status and a second switch status that is different from the first switch status,

the at least one additional bicycle component of the plurality of additional bicycle components has a first component status and a second component status that is different from the first component status,

the at least one additional bicycle component of the plurality of additional bicycle components is in the first component status while the switch is in the first switch status, and

the at least one additional bicycle component of the plurality of additional bicycle components is in the second component status while the switch is in the second switch status.

5. The bicycle derailleur according to claim 1 , wherein

the user interface includes at least one of a dial switch, a tactile switch, a slide switch, a capacitive switch, and a toggle switch.

6. The bicycle derailleur according to claim 1 , wherein

the base member has a rear-sprocket facing surface and a reverse surface provided on a reverse side of the rear-sprocket facing side,

the rear-sprocket facing side is configured to face toward a bicycle rear sprocket assembly in a mounting state where the base member is attached to the bicycle frame, and

the user interface is provided in the reverse surface.

7. The bicycle derailleur according to claim 6 , wherein

the reverse surface is inclined relative to an upper direction in the mounting state where the base member is attached to the bicycle frame.

8. The bicycle derailleur according to claim 1 , further comprising

an information device configured to inform a user of a state of the bicycle derailleur.

9. The bicycle derailleur according to claim 8 , wherein

the information device is mounted to at least one of the base member, the movable member, and the linkage structure.

10. The bicycle derailleur according to claim 8 , wherein

the base member has a rear-sprocket facing surface and a reverse surface provided on a reverse side of the rear-sprocket facing side,

the rear-sprocket facing side is configured to face toward a bicycle rear sprocket assembly in a mounting state where the base member is attached to the bicycle frame, and

the information device is provided in the rear-sprocket facing surface.

11. The bicycle derailleur according to claim 8 , wherein

the information device includes an indicator configured to indicate the state of the bicycle derailleur.

12. The bicycle derailleur according to claim 11 , wherein

the indicator includes a light emitter configured to emit light in accordance with the state of the bicycle derailleur.

13. The bicycle derailleur according to claim 8 , wherein

the information device is configured to inform the user of a state of a battery charge.

14. The bicycle derailleur according to claim 1 , wherein

the at least one additional bicycle component of the plurality of additional bicycle components includes at least one of a bicycle suspension and a bicycle adjustable seatpost.

15. A bicycle derailleur comprising:

a base member configured to be attached to a bicycle frame;

a movable member configured to be movable relative to the base member;

a linkage structure configured to movably couple the movable member to the base member; and

a user interface including an electric switch other than a push switch.

16. A bicycle derailleur comprising:

a base member configured to be attached to a bicycle frame, the base member including a first base surface and a second base surface, the first base surface facing in an upper direction in the mounting state where the base member is attached to the bicycle frame, the second base surface being provided on a reverse side of the first base surface;

a movable member configured to be movable relative to the base member;

a linkage structure configured to movably couple the movable member to the base member; and

a user interface configured to receive a user input and provided in the second base surface.