Abstract: A brake control device includes an electronic controller that is configured to control a braking unit that is configured to brake at least one of a plurality of rotating bodies of a human-powered vehicle. The electronic controller is configured to control the braking unit upon determining an ABS control is performed to decrease a braking force of a first rotating body included in the plurality of rotating bodies so that a braking force of a second rotating body, which is different from the first rotating body and included in the plurality of rotating bodies, is increased by a force that is different from hydraulic pressure.

Abstract: A hydraulic device comprises a hydraulic structure and a release member. The hydraulic structure includes an interior space in which a fluid is to be filled. The release member is attached to the hydraulic structure so as to be exposed to the interior space and an atmosphere. The release member is configured to release air from the interior space toward the atmosphere in accordance with an internal pressure of the interior space.

Abstract: An electrical bicycle operating system comprises a first switch, a second switch, and a controller. The first switch is configured to generate a first signal. The second switch is configured to generate a second signal. The controller is configured to generate a third signal different from the first signal and the second signal in response to a concurrent operation of the first switch and the second switch. The controller is configured to generate a fourth signal different from the third signal in response to a release of the first switch in a state where the second switch is operated continuously after the concurrent operation.

Abstract: A notification system notifies brake-related information related to braking of a rotation body of a human-powered vehicle. The notification system includes a notification unit that includes a notification device configured to notify a user of the brake-related information. The notification device is provided on at least one of a brake device braking the rotation body, an operation device operating the brake device, and a display device.

Abstract: To provide a shifting control device and an electric shifting system allowing a user to comfortably ride a human-powered vehicle, a shifting control device comprising a controller configured to control a shifting device in accordance with a first operation performed on an operating device for braking a rotary body of a human-powered vehicle.

Abstract: An electronic controller and a control system are provided that allow the rider to comfortably ride a human-powered vehicle. The electronic controller includes at least one processor configured to control a notification device based on environmental information related to a surrounding environment of a human-powered vehicle.

Abstract: To provide a brake controller and a brake system that appropriately brake a rotary body of a human-powered vehicle, a brake controller includes one or more processors configured to programmatically control a braking portion of a brake device so that the braking portion brakes a rotary body of the human-powered vehicle based on first information related to travel of the human-powered vehicle, the first information excluding a road surface gradient.

Abstract: A brake system includes a driving part driven by electric power to adjust braking force applied to a rotary body of a human-powered vehicle and an electronic controller configured to control the driving part in accordance with a rotational state of the rotary body. The electronic controller has a plurality of control modes including a first mode that drives the driving part in accordance with a user operation and a second mode that does not drive the driving part regardless of the user operation. The electronic controller is configured to switch the plurality of control modes based on setting information related to an input to the human-powered vehicle.

Abstract: A human-powered vehicle system and a control method are provided that reduce power consumption of a detection device. The human-powered vehicle system includes an electronic controller having at least one processor configured to control a detection device provided at a human-powered vehicle to detect an electromagnetic wave having a frequency that is greater than or equal to 30 GHz and excluding visible light. The at least one processor is configured to control the detection device in at least one of a first mode and a second mode that consumes less power than the first mode.

Abstract: A brake system includes a driving part driven by electric power to brake a rotary body of a human-powered vehicle and an electronic controller configured to control the driving part. The electronic controller has a plurality of control modes including a first mode that drives the driving part in accordance with a user operation and a second mode that does not drive the driving part regardless of the user operation. The electronic controller is configured to switch the plurality of control modes based on setting information related to an input to the human-powered vehicle.

Abstract: A bicycle hydraulic operating device is basically provided with a base member, a piston, an operating member, a hydraulic reservoir tank and a diaphragm. The base member includes a cylinder bore. The piston is movably disposed in the cylinder bore. The operating member is coupled to the piston to move the piston within the cylinder bore. The hydraulic reservoir tank is fluidly connected to the cylinder bore. The diaphragm is at least partially disposed inside the hydraulic reservoir tank and divides the hydraulic reservoir tank into a hydraulic fluid chamber and an air chamber. The air chamber is at least partially located closer to the cylinder bore than the hydraulic fluid chamber.

Abstract: A hydraulic operating device for a small vehicle including a bicycle comprises a base member, a mounting structure, an operating member, and a piston. The base member includes a cylinder bore having a cylinder axis. The mounting structure defines a mounting axis linearly extending along the handlebar in a mounting state where the base member is mounted on a handlebar with the mounting structure. The operating member is pivotally coupled to the base member about a first pivot axis between a rest position and an operated position. The cylinder axis is non-perpendicular to the mounting axis as viewed along the first pivot axis in the mounting state. The piston is movably provided in the cylinder bore. The piston is coupled to the operating member to be pulled in response to a pivotal movement of the operating member from the rest position to the operated position.

Abstract: A bicycle hydraulic operation device includes a bracket configured to be attached to a bicycle part. A hydraulic cylinder is provided on the bracket, and a piston is located within the hydraulic cylinder. An attachment bore provided on the bracket, and the attachment bore is connected with the hydraulic cylinder. The attachment bore includes a step. At least part of the attachment bore is arranged in an area that radially surrounds the hydraulic cylinder.

Abstract: An electrical bicycle operating system comprises a first switch, a second switch, and a controller. The first switch is configured to generate a first signal. The second switch is configured to generate a second signal. The controller is configured to generate a third signal different from the first signal and the second signal in response to a concurrent operation of the first switch and the second switch. The controller is configured to generate a fourth signal different from the third signal in response to a release of the first switch in a state where the second switch is operated continuously after the concurrent operation.

Abstract: A bicycle hub assembly comprises a hub axle, a hub body, a sprocket support structure, and a brake-rotor support structure. The sprocket support structure includes a first torque-transmitting profile and a first externally-threaded portion. The first torque-transmitting profile is configured to transmit a rotational force between the sprocket support structure and a bicycle sprocket assembly. The first externally-threaded portion is configured to threadedly engage with a first internally-threaded portion of a first lock member. The brake-rotor support structure includes a radially external surface, a radially internal surface, and a second torque-transmitting profile configured to transmit a rotational force between the brake-rotor support structure and a brake rotor. The second torque-transmitting profile is provided on the radially external surface.

Abstract: A bicycle operating device comprises a base member, an operating member, a hydraulic unit, an electrical switch, a wireless communicator, and a power supply. The base member includes a first end to be mounted to a bicycle handlebar and a second end opposite to the first end. The operating member is pivotally coupled to the base member about a first pivot axis. The wireless communicator is electrically connected to the electrical switch to wirelessly transmit a signal to an additional component in response to an input operation. The power supply is electrically connected to the wireless communicator to supply electrical power to the wireless communicator. The hydraulic unit at least partly overlaps with at least one of the wireless communicator and the power supply when viewed from a first direction parallel to the first pivot axis.

Abstract: A bicycle electric telescopic apparatus comprises a first tube, a second tube, a positioning structure, an electric positioning actuator, and a power supply. The first tube has a center axis. The second tube is telescopically received in the first tube. The positioning structure is configured to relatively position the first tube and the second tube in a telescopic direction extending along the center axis of the first tube. The electric positioning actuator is configured to actuate the positioning structure. The power supply is to supply electricity to the electric positioning actuator. The power supply is configured to be detachably connected to an electric bicycle component other than the bicycle electric telescopic apparatus.

Abstract: A bicycle electric device comprises an electric actuator, a controller, and a switch. The electric actuator is configured to be operated in response to an operation of a bicycle electric operating device. The controller has a pairing mode in which the controller receives identification information of at least one electric telescopic apparatus. The switch is electrically connected to the controller to set the controller to the pairing mode based on a user input received by the switch.

Abstract: A bicycle hydraulic operating device is basically provided with a base member, a piston, an operating member and a hydraulic reservoir. The base member includes a cylinder bore. The piston is movably disposed in the cylinder bore. The operating member coupled to the piston to move the piston within the cylinder bore. The hydraulic reservoir includes a hydraulic reservoir tank and a reservoir lid. The hydraulic reservoir tank is fluidly connected to the cylinder bore. The reservoir lid closes a tank opening of the hydraulic reservoir tank. The tank opening defines an opening cross sectional area. The hydraulic reservoir tank defines a tank cross sectional area parallel to the opening cross sectional area. The opening cross sectional area of the tank opening is smaller than the tank cross sectional area of the hydraulic reservoir tank.

Abstract: A bicycle operation device includes a clamp and an operation unit. The clamp is attachable to a handlebar of a bicycle. The operation unit includes a wireless communicator configured to communicate with a bicycle component and an electric switch configured to transmit a signal to the wireless communicator. The operation unit is attachable to the clamp in a manner allowing for adjustment of the position of the operation unit relative to the clamp.