A gear switching control device of an internal derailleur includes a plurality of planet gear speed change systems; a gear switching control unit; a plurality of axial ratchet control rings for controlling action of a plurality of axial ratchets; a plurality of axial ratchets; and the plurality of axial ratchet control rings are serially connected by the same gear switching control unit; characteristic in that: a gear switching control unit comprising: a track sleeve, one end of the track sleeve is installed with force accept portion and another end thereof is installed with a linking rod which IS used to serially connected a plurality of axial ratchet control rings; each of the axial ratchet control rings is formed with a respective connecting holes; each axial ratchet control ring being installed a cam or cam-like device; various cam having different operating moving range.

A coupling arrangement for coupling members as a gear change coupling in a gear mechanism unit includes a first member and a second member. The first member has a coupling toothing system. At least one locking body arrangement is mounted pivotably on the second member. The locking body arrangement can be pivoted into a coupling position, in the case of which a driving section on the locking body arrangement engages into the coupling toothing system. The locking body arrangement can be pivoted into a release position, in the case of which the driving section of the locking body arrangement does not engage into the coupling toothing system. The locking body arrangement has a locking body carrier which is mounted pivotably on the second member, and has a locking body member which is mounted pivotably on the locking body carrier and on which the driving section is configured.

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.

An integrated control device is provided, having a support body configured for attachment to curved bicycle handlebars. The support body has a brake lever for controlling the brake, and a pair of control levers. The pair of control levers are configured for manual operation. Each control lever has a respective control region and the control regions of the pair of control levers are arranged behind the brake lever and above each other.

An integrated control device is provided, having a support body configured for attachment to curved bicycle handlebars. The support body has a brake lever for controlling the brake, and a pair of control levers. The pair of control levers are configured for manual operation. Each control lever has a respective control region and the control regions of the pair of control levers are arranged behind the brake lever and above each other.

A controller drives a shifting actuator to move a first engagement member from an original position of a first engagement portion in one direction along a relative motion path and acquires first position information representing a first position, the first position being a position where the first engagement portion moved in the one direction contacts a second engagement portion. The controller drives the shifting actuator to move the first engagement member from the original position in the other direction along the relative motion path and acquires second position information representing a second position where the first engagement portion moved in the other direction contacts the second engagement portion. The controller calculates a center position of the first engagement portion on the relative motion path from the acquired first position information and the acquired second position information, compares the calculated center position to the original position.

A human-powered vehicle control device includes a controller configured to control a motor that assists propulsion of a human-powered vehicle including a movable member that is extensible and retractable. The controller controls the motor in accordance with actuation of the movable member during an extending or retracting action of the movable member.

A bicycle derailleur comprises a circuit board, an electrical user interface, a motor housing, and a motor unit. The electrical user interface includes a user accessing portion configured to receive a user input. The motor housing includes a motor accommodating space. The motor unit is provided in the motor accommodating space and configured to generate rotational force and configured to be electrically connected to the circuit board. A first direction is defined from the circuit board toward the electrical user interface or from the electrical user interface toward the circuit board. The plurality of second directions is defined to be perpendicular to the first direction. The motor unit is at least partly provided between the user accessing portion of the electrical user interface and the circuit board when viewed in at least one of the plurality of second directions.

A bicycle control device includes a housing member disposed at a handlebar of a bicycle and a lever including a first portion pivotally connected to the housing member, a second portion connected to the first portion, and a third portion connected to the second portion. The shortest line between two opposite ends of the first portion forms a first long side, and a projection of the first long side on a first plane is parallel to a first extension direction. The shortest lines between two opposite ends of the second portion and those of the third portion form a second long side and a third long side, respectively; and projections of the second and third long sides on the first plane is parallel to a second extension direction and a third extension direction. An angle between the first extension direction and the second extension direction ranges from 8° to 15°.

The system of the preferred embodiments is a transmission including: at least two axle segments; at least one crank arm attached at one end to each axle segment, wherein the space between the at least two crank arms has a gap between the at least two axle segments; a connecting rod; a connecting axle rotatably connected to one end of the connecting rod, wherein the connecting axle is attached at either end to the at least two crank arms; an actuator adapted to move the attachment point between the connecting axle and the at least two crank arms up and down the length of the at least two crank arms; at least one of a wheel and a crank arm with a pivot axle connected at least one of near the periphery of the wheel and near the end of the crank arm, wherein the distal end of the connecting rod is rotatably connected to the pivot axle; a one way clutch connected to the wheel and connected to a rear axle; a drive gear connected to the rear axle and adapted to output drive power. The transmission of the first preferred embodiments is preferably designed to provide a compact transmission that does not use a derailleur and limits or does not use a chain at all, while being suitable for use on human powered vehicles like bicycles and having the potential in some variations of providing continuous variability in ratio of input axle rotation to output axle rotation. The system of the preferred embodiments may, however, be used for any suitable purpose.