Abstract: A height adjustable seatpost assembly is provided with first and second tubes, a ratchet mechanism and a drive source. The first and second tubes are telescopically arranged. The ratchet mechanism includes a ratchet tooth structure and a pawl structure. The pawl structure is engaged with the ratchet tooth structure in a lock position. The pawl structure is movably coupled with respect to the ratchet tooth structure in a movable position such that the first and second tubes are movably arranged relative to each other in at least one axial direction of the first and second tubes. The drive source moves the pawl structure between the lock position and the movable position in response to operation of the drive source. The drive source further axially moves the first and second tubes relative to each other in response to operation of the drive source.

Abstract: A tension device for a drive chain of a bicycle including a first pulley having a first rotational axis swingable around a swing center, and a second pulley having a second rotational axis movable along a movable direction to change a distance between the first rotational axis and the second rotational axis. The first pulley is arranged to be forced around the swing center to apply tension to the drive chain, and the second pulley is arranged to be forced along the moving direction to apply tension to the drive chain.

Abstract: A bicycle shifting control apparatus is provided with a gear selection signal receiving section, a gearshift determination section and a gearshift output section. The gear selection signal receiving section selectively receives a first gear selection signal and a first/second gear selection signal. The gearshift determination section determines a first rider shift intention for first gear shifting when the first gear selection signal is received, which meets a first signal criteria, and determines a second rider shift intention for performing second gear shifting in addition to the first shifting when the first/second gear selection signal is received by, which meets a second (different) signal criteria. The gearshift output section outputs a first gearshift signal upon determining the first rider shift intention or the second rider shift intention exists and outputs a second gearshift signal upon determining that the second rider shift intention exists.

Abstract: An apparatus for controlling a bicycle suspension element includes a suspension parameter controller that provides a suspension parameter controlling signal to control an operating parameter of the bicycle suspension element in response to a bicycle seat position.

Abstract: A bicycle component actuating device is provided with a base member, a first user operating member, a locking member and a second user operating member. The first user operating member rotates between first and second operating positions about a rotational axis in a first operating plane that intersects with the rotational axis. The locking member is moves between a locking position to lock the first user operating member in the second operating position and a releasing position to release the first operating member from the second operating position. The second user operating member moves from a non-releasing position to a releasing position for releasing the first user operating member. One of the locking member and the second user operating member is movably along an operating path that intersects with the first operating plane of the first user operating member.

Abstract: A bicycle shifting control apparatus is provided with a gear selection signal receiving section, a gearshift determination section and a gearshift output section. The gear selection signal receiving section selectively receives a first gear selection signal and a first/second gear selection signal. The gearshift determination section determines a first rider shift intention for first gear shifting when the first gear selection signal is received, which meets a first signal criteria, and determines a second rider shift intention for performing second gear shifting in addition to the first shifting when the first/second gear selection signal is received by, which meets a second (different) signal criteria. The gearshift output section outputs a first gearshift signal upon determining the first rider shift intention or the second rider shift intention exists and outputs a second gearshift signal upon determining that the second rider shift intention exists.

Abstract: A bicycle wheel securing structure includes an outer axle, an inner axle, a head member, a lever member, a fixing structure and an adjustment member. The outer axle has a first threaded end and a second end. The inner axle is coupled to the outer axle within an internal bore of the outer axle. The head member is disposed on the inner axle with the lever member operatively mounted to move the head member relative to the inner axle in response to movement of the lever member. The fixing structure is disposed between the outer axle and the inner axle to releasably prevent axial removal of the inner axle from the internal bore of the outer axle. The fixing structure and the adjustment member cooperate together to adjust a final position of the lever member in a rotational direction with respect to the outer axle.

Abstract: A bicycle wheel securing structure includes a shaft member, a head member, a lever member and a radial expansion structure. The shaft member has first and second end portions. The head member is coupled at the second end portion. The lever member is operatively mounted to move the shaft member in an axial direction relative to the head member in response to movement of the lever member. The radial expansion structure is disposed at the second end portion and includes an expansion member and the second end portion of the shaft member. The expansion member has a first inclined surface and the second end portion of the shaft member has a second inclined surface that cooperates with the first inclined surface to radially expand an outer diameter of the radial expansion structure in response to movement of the lever member from a release position to an attachment position.

Abstract: A bicycle wheel securing structure includes an outer axle, an inner axle, a head member, a lever member, a fixing structure and an adjustment member. The outer axle has a first threaded end and a second end. The inner axle is coupled to the outer axle within an internal bore of the outer axle. The head member is disposed on the inner axle with the lever member operatively mounted to move the head member relative to the inner axle in response to movement of the lever member. The fixing structure is disposed between the outer axle and the inner axle to releasably prevent axial removal of the inner axle from the internal bore of the outer axle.

Abstract: A tension device for a drive chain of a bicycle including a first pulley having a first rotational axis swingable around a swing center, and a second pulley having a second rotational axis movable along a movable direction to change a distance between the first rotational axis and the second rotational axis. The first pulley is arranged to be forced around the swing center to apply tension to the drive chain, and the second pulley is arranged to be forced along the moving direction to apply tension to the drive chain.

Abstract: A bicycle wheel securing structure includes an outer axle, an inner axle, a head member and a lever member. The outer axle has a first threaded end and a second end. The inner axle is coupled to the outer axle within an internal bore of the outer axle. The head member is disposed on the inner axle with the lever member operatively mounted to move the head member relative to the inner axle in response to movement of the lever member. A structure is arranged such that a final rotational position of the lever member can be adjusted. A structure is also disposed between the outer axle and the inner axle to releasably prevent axial removal of the inner axle from the internal bore of the outer axle.

Abstract: A bicycle wheel securing structure includes a shaft member, a head member, a lever member and an adjustment member. The shaft member has a first threaded end and a second end with a center axis extending therebetween. The head member is disposed on the second end of the shaft member. The lever member is operatively mounted between the shaft member and the head member to move the shaft member in an axial direction relative to the head member in response to movement of the lever member. The adjustment member is axially adjustably coupled to the head member such that an axial position of an abutment surface of the adjustment member can be adjusted relative to the shaft member.

Abstract: A cable operating mechanism basically has a fixed member, a wire take-up member, an operating lever and a movement transmission arrangement. The wire takeup member is rotatably mounted with respect to the fixed member in first and second rotational directions with the second rotational direction being opposite the first rotational direction. The operating lever is pivotally mounted in the first rotational direction with respect to the fixed member. The movement transmission arrangement is operatively coupling the operating lever to the wire takeup member to transmit pivotal movement of the operating lever to rotational movement the wire takeup member such that the wire takeup member has a greater amount of angular displacement than an angular displacement of the operating lever in response to pivotal movement of the operating lever in the first rotational direction.

Abstract: A bicycle component actuating device is provided with a base member, a first user operating member and a locking member. The base member includes a tube mounting structure having a tube receiving bore with a center mounting axis. The first user operating member is rotatably mounted relative to the base member for rotation between a first operating position and a second operating position about a rotational axis that is parallel to and offset from the center mounting axis of the tube mounting structure. The locking member is movably mounted relative to the base member for selective movement between a locking position to lock the first user operating member in the second operating position and a releasing position to release the first operating member from the second operating position.

Abstract: A bicycle derailleur comprises a base member adapted to be mounted to a bicycle, a movable member movably coupled to the base member, and a chain guide coupled to the movable member. The chain guide is coupled for rotation around a rotational axis (X), and a biasing element biases the chain guide in a selected rotational direction. A resistance applying unit applies a resistance to rotational movement of the chain guide in a direction opposite the selected rotational direction, and an adjusting unit adjusts an amount of resistance applied by the resistance applying unit.

Abstract: A bicycle component actuating device is provided with a base member, a first user operating member, a locking member and a second user operating member. The first user operating member rotates between first and second operating positions about a rotational axis in a first operating plane that intersects with the rotational axis. The locking member is moves between a locking position to lock the first user operating member in the second operating position and a releasing position to release the first operating member from the second operating position. The second user operating member moves from a non-releasing position to a releasing position for releasing the first user operating member. One of the locking member and the second user operating member is movably along an operating path that intersects with the first operating plane of the first user operating member.

Abstract: A bicycle wheel securing structure includes a shaft member, a head member, a lever member and a radial expansion structure. The shaft member has first and second end portions. The head member is coupled at the second end portion. The lever member is operatively mounted to move the shaft member in an axial direction relative to the head member in response to movement of the lever member. The radial expansion structure is disposed at the second end portion and includes an expansion member and the second end portion of the shaft member. The expansion member has a first inclined surface and the second end portion of the shaft member has a second inclined surface that cooperates with the first inclined surface to radially expand an outer diameter of the radial expansion structure in response to movement of the lever member from a release position to an attachment position.

Abstract: A bicycle wheel securing structure includes an outer axle, an inner axle, a head member and a lever member. The outer axle has a first threaded end and a second end. The inner axle is coupled to the outer axle within an internal bore of the outer axle. The head member is disposed on the inner axle with the lever member operatively mounted to move the head member relative to the inner axle in response to movement of the lever member. A structure is arranged such that a final rotational position of the lever member can be adjusted. A structure is also disposed between the outer axle and the inner axle to releasably prevent axial removal of the inner axle from the internal bore of the outer axle.

Abstract: A bicycle wheel securing structure includes a shaft member, a head member, a lever member and an adjustment member. The shaft member has a first threaded end and a second end with a center axis extending therebetween. The head member is disposed on the second end of the shaft member. The lever member is operatively mounted between the shaft member and the head member to move the shaft member in an axial direction relative to the head member in response to movement of the lever member. The adjustment member is axially adjustably coupled to the head member such that an axial position of an abutment surface of the adjustment member can be adjusted relative to the shaft member.

Abstract: A bicycle control device is disclosed having a control lever that is operable in a first direction to operate the brake control mechanism, a second direction to operate the shift control mechanism in the pulling direction and a third direction to operate the shift control mechanism in the release direction. In a preferred embodiment of the invention, when viewed from the perspective of a rider on the bicycle, the first direction is the direction of movement of the lever toward the handlebar. The second direction is the direction of movement of the control lever downward and the third direction is the direction of movement of the control lever upward. In a more preferred embodiment, the second and third directions are perpendicular to the first direction.