An electrical bicycle operating system includes a first switch unit that includes a first switch group configured to be mounted to a bicycle on a first side of a central longitudinal axis of the bicycle, the first switch group including a first switch and a second switch having a first position and a second position in the first switch group. Also included is a second switch unit that includes a second switch group configured to be mounted to the bicycle on an opposite side from the first side, the second switch group including a third switch having a same position as the first position. A control unit is configured to generate a first signal where the first switch unit is actuated, a second signal where the second switch unit is actuated, and a third signal where the first switch unit and the second switch unit are actuated concurrently.

A shifting system for a human-powered vehicle comprises a controller. The controller is configured to receive a driving torque and a cadence of the human-powered vehicle from at least one sensor. The controller is configured to determine a permitted shift timing based on the driving torque and the cadence. The controller is further configured to control a shift mechanism to perform a gear shift during the permitted shift timing.

A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to controller of the bicycle. The controller activates motor overdrive based on the measured wheel speed and/or the measured crank cadence.

A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to controller of the bicycle. The controller activates motor overdrive based on the measured wheel speed and/or the measured crank cadence.

A bicycle electric derailleur making use of a geared electrical motor located on the predominantly stationary portion of said derailleur assembly thereby alleviating extraneous loads to actuating apparatus due to inherent shocks and vibrations, and additionally offering suitability for implementation in an automatic electronic control system as well as simpler manual apparatuses through reliance on a variety of versatile derailleur position resolving means for superior adaptability.

A gear shift controller includes a detection circuit and a control unit. The detection circuit is configured to determine traveling state information about a traveling state of a human-powered vehicle. The control unit is configured to receive the traveling state information from the detection circuit to control a shift standby time of a transmission of the human-powered vehicle. The traveling state information includes information other than traveling speed information about a traveling speed of the human-powered vehicle and crank information about crank rotation information of the human-powered vehicle.

A bicycle front shifting system includes operable to transmit a wireless signal, a crank assembly with two crank arms and a pedal on each of the two crank arms. The crank assembly is rotatable about a rotation axis. A front shift unit is coupled to the crank assembly and is rotatable about the rotation axis. The front shift unit includes a chain ring component with a big chain ring and a small chain ring. The small chain ring has a small diameter and the big chain ring has a big diameter that is larger than the small diameter. A shift mechanism is coupled to and rotatable with the chain ring component about the rotation axis. The shift mechanism is configured to receive the wireless signal from the shifter and to shift a chain between the big chain ring and the small chain ring according to the wireless signal.

An automatic bicycle drivetrain shifting apparatus comprising a bicycle drive chain derailleur powered by a servo gearmotor slaved to an electronic control system and controlled through a highly adaptable user interface serving to automatically alternate drive chain position between available bicycle drive sprockets under user defined shifting criteria adaptable in real time to rider conditioning, comfort level and road conditions thereby alleviating manual shifting tasks and achieving optimal pedal rate and effort settings for the rider.

A control device includes an electronic controller configured to automatically control a transmission device of a human-powered vehicle in accordance with a shifting condition. The electronic controller is configured to set the shifting condition based on first reference information including information related to change in transmission ratio that is shifted by the transmission device.

A control device includes an electronic controller configured to control a transmission device of a human-powered vehicle in accordance with a shifting condition. The electronic controller is configured to monitor a torque applied to the human-powered vehicle upon determining the human-powered vehicle is ridden and driven. The electronic controller is configured to permit a shifting operation of the transmission device in accordance with a peak value of the torque upon determining the shifting condition is satisfied.