A bicycle bar end attachment includes a main body, a shoe, a compression member, a rotation member, a transmission structure and a fixing structure. The main body is insertable into a bicycle handlebar, and includes a first threaded portion. The shoe is located between an inner surface of the handlebar and the main body. The compression member includes a second threaded portion engaged with the first threaded portion and a first pressing surface contacting one end of the shoe. The rotation member includes an exposed portion accessible from outside the handlebar and a second pressing surface contacting the other end of the shoe. The transmission structure transmits rotation of the rotation member to the compression member. The fixing structure holds the shoe between the compression member and the rotation member, and moves the shoe in a radial direction of the handlebar to fix the main body to the handlebar.

A bicycle component operating apparatus includes a first operating device and a second operating device. The first operating device includes a base member and an operating member movably arranged with respect to the base member, and the first operating device being configured to perform an operation of at least one of a bicycle transmission component and a bicycle brake component, the base member having an attachment area. The second operating device is detachably attached to the attachment area of the base member, the second operating device being configured to perform an operation of a bicycle height adjustable seat post.

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 seat post assembly for a bicycle includes a first tube having a first distal end and a second tube having a second distal end. A distance between the first distal end of the first tube and the second distal end of the second tube is at a maximum when the first tube is in a first position relative to the second tube. The seat post assembly also includes a first chamber and a second chamber that are fluidly coupleable. The first chamber is a positive fluid chamber, and the second chamber is a negative fluid chamber. The seat post assembly includes a fluid volume disposed in the first chamber and the second chamber. The fluid volume includes a compressible fluid. The first chamber is configured to act as a spring configured to bias the first tube towards the first position relative to the second tube.

There is described a device for adjusting a tilt of a bicycle seat. An angle of a seat coupling relative to a seat post coupling is determined. An angle of the seat post coupling relative to a reference position, such as a horizon, is determined. For example, the angle of the seat post coupling relative to the reference position may be determined based on a current geographic position of the bicycle. Based on the determined angles, the tilt of the bicycle seat is adjusted by actuating a seat tilt driver, such as a motor.

A bicycle seat post structure includes an upper tube, a lower tube, a height adjusting mechanism and at least one sliding member. The upper tube includes at least one stopping member. The lower tube has a first edge. The sliding member is movably disposed in the lower tube. The stopping member does not abut against the sliding member as the stopping member is in a first position. When the height adjusting mechanism is operated to allow the upper tube to move along an axial direction, the stopping member is switched to a second position and is restricted by the sliding member. The sliding member is operated to move along the axial direction so as to be positioned from one of a plurality of positions to another one of the plurality of positions, thereby changing a distance between the stopping member in the second position and the first edge.

An adjusting structure for seat post of bicycle includes an external tube. A gas lift is disposed in and engaged with the external tube. An actuator rod protrudes away from a main body of the gas lift. An internal tube is movably disposed in the external tube, and the actuator rod is engaged with an end of the internal tube. A diameter of the internal tube is greater than a diameter of the main body, so that the internal tube could be moved relative to the main body in an axial direction. A restricting structure is mounted between the main body and the internal tube and is adapted to restrict the internal tube from rotating relative to the gas lift and the external tube. Since the restricting structure is not in contact with the external tube, friction provided by the restricting structure could not deform the external tube.

A bicycle operating device comprises a base member, a first operating structure, a second operating structure, and a prevention member. The first operating structure comprises a first take-up member, a first operating member, and a first actuating member. The second operating structure comprises a second take-up member and a second operating member. The prevention member is configured to move together with the second operating member to prevent the first actuating member from actuating the first take-up member to move in at least one of a first pulling actuation direction and a first releasing actuation direction during a movement of the first operating member from a first rest position toward a first operated position.

A control device for an actuation cable on a bicycle is provided. The control device comprises: a frame for securing the control device to the bicycle; and a lever arm assembly rotatably coupled to the frame and moveable between a first position and a second position, the lever arm assembly comprising: a lever arm rotatable coupled to the frame at a pivot point; a cable lock for fixing the actuation cable to the lever arm, the cable lock demarcating a working segment of the actuation cable from a tail of the actuation cable when the actuation cable is fixed to the lever arm; and a cable catch configured to removably retain at least a portion of the tail of the actuation cable.

A bicycle control device comprises a seat information generator and an assist controller. The seat information generator is configured to generate seat information. The assist controller is configured to control an assist actuator to assist a driving force of a bicycle based on the seat information.