Abstract: 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.

Abstract: A fluid device for a bicycle may be provided to vent fluid from a hydraulic chamber of a seating component such as an adjustable seating assembly for a bicycle. The fluid device may be operable to vent a compressible fluid or a mixed combination flow of compressible and non-compressible fluids in a metered volume. The fluid device may recycle fluids preferentially.

Abstract: A fluid device for a bicycle may be provided to vent fluid from a hydraulic chamber of a seating component such as an adjustable seating assembly for a bicycle. The fluid device may be operable to vent a compressible fluid or a mixed combination flow of compressible and non-compressible fluids in a metered volume. The fluid device may recycle fluids preferentially.

Abstract: An electromechanical rear derailleur is provided for a bicycle, including a base member for attachment to the bicycle. A movable member has a cage assembly attached thereto. A linkage is provided that couples the movable member to the base member and operative to enable movement of the movable member relative to the base member in a direction substantially parallel to the mounting axis. A power source powers an motor module connected thereto to move the movable member and elements thereon.

Abstract: A seat post assembly for a bicycle has a first tube with a first distal end and a second tube with a second distal end. The first and second tubes are movable relative to one another to establish a distance between the first and second distal ends. A first pressure chamber has a loaded pressure proportional to a load applied along the tube axis. A second pressure chamber has a second pressure not proportional to the load. A flow path connects the first and second pressure chambers. A valve is disposed along the flow path and is configured to move between a closed position closing the flow path and an open position opening the flow path between the first and second pressure chambers. An isolator of the valve is configured to nullify any resultant force produced by the loaded pressure of the first pressure chamber acting on the isolator.

Abstract: An electromechanical rear derailleur is provided for a bicycle, including a base member for attachment to the bicycle. A movable member has a cage assembly attached thereto. A linkage is provided that couples the movable member to the base member and operative to enable movement of the movable member relative to the base member in a direction substantially parallel to the mounting axis. A power source powers an motor module connected thereto to move the movable member.

Abstract: A bicycle control assembly may be provided for operating an electromechanical gear shifting device. The control assembly includes a graspable housing mountable to the bicycle, a power supply connected to the control assembly disposed in the housing, a first operating member movably connected to the housing, and electronic componentry disposed on the first operating member. The electronic componentry may include an electrical switch, a controller in communication with the electrical switch and configured to generate a signal to change a shift position of the gear shifting device responsive to an input from the electrical switch, and an antenna in communication with the controller and configured to send the signal. The control assembly may also include a cable extending from the housing to the first operating member connecting the power supply and the electronic componentry.

Abstract: A fluid device for a bicycle may be provided to vent fluid from a hydraulic chamber of a seating component such as an adjustable seating assembly for a bicycle. The fluid device may be operable to vent a compressible fluid or a mixed combination flow of compressible and non-compressible fluids in a metered volume. The fluid device may recycle fluids preferentially.

Abstract: A bypass device for a seating component such as an adjustable seating assembly for a bicycle may be provided to redistribute fluid preferentially by density. The bypass device may be operable to redistribute a low density compressible fluid or a mixed phase of low density compressible and high density non-compressible fluids within the seating component.

Abstract: A bicycle rear derailleur has a base member mountable to a bicycle frame, a movable member movably coupled to the base member, a chain guide assembly rotatably connected to the movable member for rotation about a rotational axis, a biasing element configured and arranged to bias the chain guide assembly for rotation in a first rotational direction with respect to the movable member, and a fluid damper having a fluid cavity containing a volume of fluid. The fluid damper is operatively disposed between the chain guide assembly and the movable member to apply a damping force to the chain guide assembly when the chain guide assembly rotates in a second rotational direction opposite to the first rotational direction. The fluid damper has a guide wheel configured to route a chain and rotatable about the rotational axis.

Abstract: An electronic rear derailleur for a bicycle, includes a base member for attachment to a frame member of the bicycle, and a movable member having a cage assembly attached thereto. The electronic rear derailleur may also include a linkage coupling the movable member to the base member and configured to permit movement of the movable member relative to the base member, and a motor positioned at the movable member, the motor configured to operate the linkage to move the movable member relative to the base member.

Abstract: An embodiment of the invention provides an electromechanical rear derailleur for a bicycle including a base member that is configured to be coupled to a frame member of a bicycle. The derailleur includes a movable member and a link mechanism that movably couples the movable member to the base member. A motor is positioned at the movable member to move the movable member.

Abstract: An electromechanical front gear changer for a bicycle is provided, the bicycle having a chain, including a base member attachable to the bicycle. A linkage is movably coupled to the base member. A chain guide is movably coupled to the linkage for contacting the chain. A motor is supported by the base member. A gear transmission is driven by the motor to move the linkage. A CPU is provided for controlling the motor and a power supply is supported by the base member to power the motor and the CPU. A manually operated device is disposed on the electromechanical front gear changer.

Abstract: An electromechanical front gear changer for a bicycle is provided, the bicycle having a chain, including a base member attachable to the bicycle. A linkage is movably coupled to the base member. A chain guide is movably coupled to the linkage for contacting the chain. A motor is supported by the base member. A gear transmission is driven by the motor to move the linkage. A CPU is provided for controlling the motor and a power supply is supported by the base member to power the motor and the CPU.

Abstract: A control cable actuation device designed to be attached to a handlebar-steered vehicle frame member for a cable assembly including a control cable slidably disposed within a control cable housing. The actuation device includes a cable adjuster attachable to the frame member and an actuation lever configured to displace one end of the control cable. The cable adjuster is configured to receive the control cable and to axially displace to slidably displace the cable within the cable housing under cable adjustment. The lever is rotatably attached to the cable adjuster about a first axis to slidably displace the cable within the cable housing under cable actuation. The lever is also configured to rotate about a second axis to axially displace the cable adjuster to slidably displace the cable within the cable housing under cable adjustment.

Abstract: A bicycle rear derailleur includes a base member mountable to a bicycle frame. A movable member is movably coupled to the base member. A chain guide assembly is rotatably connected to the movable member for rotation about a rotation axis. A biasing element is configured to bias the chain guide assembly for rotation in a first rotational direction with respect to the movable member. A damper assembly is operatively disposed between the chain guide assembly and the movable member to apply a damping force to the chain guide assembly when the chain guide assembly rotates in a second rotational direction opposite to the first rotational direction.

Abstract: An electromechanical rear derailleur is provided for a bicycle, including a base member for attachment to the bicycle bicycle. A movable member has a cage assembly attached thereto. A linkage is provided that couples the movable member to the base member and operative to enable movement of the movable member relative to the base member in a direction substantially parallel to the mounting axis. A power source powers an motor module connected thereto to move the movable member.

Abstract: A bicycle rear derailleur includes a base member mountable to a bicycle frame. A movable member is movably coupled to the base member. A chain guide assembly is rotatably connected to the movable member for rotation about a rotation axis. A biasing element is configured to bias the chain guide assembly for rotation in a first rotational direction with respect to the movable member. A damper assembly is operatively disposed between the chain guide assembly and the movable member to apply a damping force to the chain guide assembly when the chain guide assembly rotates in a second rotational direction opposite to the first rotational direction. The damper assembly includes a one-way roller clutch assembly disposed coaxially about the rotational axis and a friction unit extending circumferentially over a circumferential angle coaxially about the rotational axis.

Abstract: An electromechanical rear derailleur is provided for a bicycle, including a base member for attachment to the bicycle along a mounting axis. A movable member has a cage assembly attached thereto. A linkage is provided including pivot axes oriented substantially perpendicular to the mounting axis, the linkage coupling the movable member to the base member and operative to enable movement of the movable member relative to the base member in a direction substantially parallel to the mounting axis. A power source powers an electric motor connected thereto and a transmission is coupled to and actuated by the motor to move the movable member.