Abstract: A bicycle transmission control apparatus is basically provided with a controller that is configured to control a gear ratio of a transmission based on seat height information of a bicycle seat relative to a bicycle frame, or change a parameter for shifting the transmission based on the seat height information of the bicycle seat relative to the bicycle frame.

Abstract: A bicycle seatpost system comprises an electric actuator, a remote controller, and a seatpost controller. The electric actuator is to change a state of a bicycle seatpost assembly between a lock state where a total length of the bicycle seatpost assembly is invariable, and an adjustable state where the total length of the bicycle seatpost assembly is variable. The remote controller is configured to transmit a first control signal and a second control signal different from the first control signal. The seatpost controller is configured to control the electric actuator to change the state of the bicycle seatpost assembly to the adjustable state based on one of the first control signal and the second control signal.

Abstract: A bicycle telescopic apparatus includes a first tube, a second tube, a positioning structure, a memory, and a controller. The second tube is telescopically received in the first tube and configured to be adjustably movable with respect to the first tube in a longitudinal direction of the bicycle telescopic apparatus. The positioning structure includes an electrical actuator to adjustably position the second tube relative to the first tube in the longitudinal direction. The memory is configured to store setting information for a predetermined relative position of the first tube and the second tube, and the setting information is changed via an electrical setting operation. The controller is configured to control the electrical actuator to position the second tube relative to the first tube at the predetermined relative position.

Abstract: A bicycle seatpost assembly comprises an electric actuator and a seatpost controller. The electric actuator is to change a state of the bicycle seatpost assembly between a lock state where a total length of the bicycle seatpost assembly is invariable, and an adjustable state where the total length of the bicycle seatpost assembly is variable. The seatpost controller is configured to control the electric actuator to maintain the adjustable state during an adjustment period selectable from a plurality of predetermined adjustment periods.

Abstract: A bicycle derailleur comprises a base member adapted to be mounted to a bicycle; a movable member movably coupled to the base member; a chain guide coupled to the movable member through a pivot shaft, wherein the chain guide is coupled for rotation around a rotational axis (X); a biasing element that biases the chain guide in a selected rotational direction around the rotational axis (X); and a resistance applying unit that applies a resistance to rotational movement of the chain guide in a direction opposite the selected rotational direction.

Abstract: A bicycle operating device includes a base member, first and second cable control bodies, first and second positioning mechanisms, an operating member and an input mechanism. The first positioning mechanism selectively maintains the first cable control body in a first predetermined position. The second positioning mechanism selectively maintains the second cable control body in a second predetermined position. The input mechanism moves the first and second cable control bodies between the first and second predetermined positions in accordance with a predetermined operation sequence having a changing point to change operation from the first cable control body to the second cable control body. The input mechanism moves the first cable control body by at least two of the first predetermined positions in a single continuous operation of the operating member. The input mechanism includes a restricting structure that prohibits movement of the first cable control body at the changing point.

Abstract: A bicycle operating device includes a base member, first and second cable control bodies, first and second positioning mechanisms, an operating member and an input mechanism. The first positioning mechanism selectively maintains the first cable control body in a first predetermined position. The second positioning mechanism selectively maintains the second cable control body in a second predetermined position. The input mechanism moves the first and second cable control bodies between the first and second predetermined positions in accordance with a predetermined operation sequence having a changing point to change operation from the first cable control body to the second cable control body. The input mechanism moves the first cable control body by at least two of the first predetermined positions in a single continuous operation of the operating member. The input mechanism includes a restricting structure that prohibits movement of the first cable control body at the changing point.

Abstract: A bicycle hydraulic operating system is basically provided with a first base member, a piston, a first operating member, a second base member and a second operating member. The first base member includes a first bicycle fixing structure and a hydraulic cylinder defining a cylinder bore. The piston is movably disposed in the cylinder bore of the first base member. The first operating member is movably mounted to the first base member. The first operating member is operatively coupled to the piston to move the piston in the cylinder bore of the first base member. The second base member includes a second bicycle fixing structure. The second operating member is movably mounted to the second base member. The second operating member is operatively coupled to the piston to move the piston in the cylinder bore of the first base member.

Abstract: A bicycle crank assembly comprises a sprocket, a crank axle, a movable member, a torque transmitting member, and a bearing structure. The sprocket has a rotational center axis. The crank axle extends along the rotational center axis. The crank axle includes an internal space. The movable member is movably provided in the internal space to move the sprocket in an axial direction of the rotational center axis. The torque transmitting member is to transmit a pedaling torque from the crank axle to the sprocket. The bearing structure is disposed between the movable member and the crank axle to slidably support the movable member in the axial direction. The bearing structure is disposed at a location different from a location of the torque transmitting member in the axial direction.

Abstract: A bicycle crank assembly comprises a sprocket unit and a crank axle. The sprocket unit includes a sprocket having a rotational center axis. The sprocket includes a plurality of driving teeth. A total number of the plurality of driving teeth is equal to or larger than 38. The crank axle extends along the rotational center axis. The sprocket unit is movable relative to the crank axle in an axial direction of the rotational center axis within a movable range having an axial length equal to or smaller than 8 mm.

Abstract: A bicycle front derailleur is basically provided with a base member, a chain guide, a link mechanism, and a biasing member. The base member is configured to be fixedly coupled to the bicycle. The chain guide is configured to guide a chain. The link mechanism couples the chain guide to the base member between retracted and extended positions in response to movement of an operation cable. The link mechanism includes a first link pivotally connected to the chain guide about a first pivot axis. The first link is configured such that the first pivot axis moves in a forward-rearward direction, while the chain guide moves between the retracted position and the extended position in a mounted state where the base member is mounted to a bicycle frame. The biasing member is operatively disposed between the base member and the chain guide to bias the chain guide towards the extended position.

Abstract: A bicycle operating device is basically provided with a first base member, a lever and an operating unit. The first base member includes a first end portion and a second end portion. The first end portion is configured to be coupled to a handlebar. The second end portion is opposite to the first end portion. The first base member extends along a longitudinal direction from the first end portion to the second end portion. The lever is pivotally coupled to the first base member about a lever axis. The operating unit includes a second base member and an operating member. The second base member includes a mounting portion that is mounted to the second end portion of the first base member. The operating member is movably coupled to the second base member between a rest position and an operated position to operate a bicycle telescopic apparatus.

Abstract: A bicycle crank assembly includes a sprocket having a rotational center axis, a crank, a crank axle and a slide mechanism. The crank axle is attached to the crank and includes an internal space. The slide mechanism is configured to displace the sprocket relatively to the crank in an axial direction parallel to the rotational center axis. At least part of the slide mechanism is disposed in the internal space of the crank axle.

Abstract: A bicycle front derailleur is basically provided with a base member, a chain guide, a link mechanism, and a biasing member. The base member is configured to be fixedly coupled to the bicycle. The chain guide is configured to guide a chain. The link mechanism couples the chain guide to the base member between retracted and extended positions in response to movement of an operation cable. The link mechanism includes a first link pivotally connected to the chain guide about a first pivot axis. The first link is configured such that the first pivot axis moves in a forward-rearward direction, while the chain guide moves between the retracted position and the extended position in a mounted state where the base member is mounted to a bicycle frame. The biasing member is operatively disposed between the base member and the chain guide to bias the chain guide towards the extended position.

Abstract: An electrical seatpost assembly comprises a first cylinder, a second cylinder, a guide member, a positioning structure, an electrical actuator, and an electrical device. The guide member is disposed between the first cylinder and the second cylinder to slidably guide the second cylinder with respect to the first cylinder. The positioning structure is to adjustably position the second cylinder relative to the first cylinder in a telescopic direction. The electrical actuator is to actuate the positioning structure in accordance with an electrical signal. The electrical device is mounted to the first cylinder. An upper end of the electrical device is disposed above a lower end of the guide member in the telescopic direction in a mounting state where the first cylinder is mounted to a bicycle frame.

Abstract: A bicycle driving system includes a crank assembly and a multiple rear sprocket assembly. The crank assembly includes a front sprocket including a rotational center axis and a crank arm. The front sprocket is movable relative to the crank arm in an axial direction parallel to the rotational center axis. The multiple rear sprocket assembly includes eleven or more rear sprockets.

Abstract: A bicycle hydraulic operating system is basically provided with a first base member, a piston, a first operating member, a second base member and a second operating member. The first base member includes a first bicycle fixing structure and a hydraulic cylinder defining a cylinder bore. The piston is movably disposed in the cylinder bore of the first base member. The first operating member is movably mounted to the first base member. The first operating member is operatively coupled to the piston to move the piston in the cylinder bore of the first base member. The second base member includes a second bicycle fixing structure. The second operating member is movably mounted to the second base member. The second operating member is operatively coupled to the piston to move the piston in the cylinder bore of the first base member.

Abstract: A bicycle shifting system is basically provided with a first shifting device, a second shifting device and a controller. One of the first shifting device and the second shifting device is mechanically operated, while the other of the first shifting device and the second shifting device is electrically operated. The controller is configured to operate at least one of the first shifting device and the second shifting device in accordance with at least one of a predetermined upshifting route and a predetermined downshifting route.

Abstract: A hub assembly for bicycle is provided. The hub assembly includes a hub shell having first and second ends at a distance from each other along a rotational axis, a first engagement structure pair having a first inner engagement structure and a first outer engagement structure, the first engagement structure pair being releasably engagable for co-rotation; and a second engagement structure pair having a second inner engagement structure and a second outer engagement structure, the pair being second engagement structure releasably engagable for co-rotation. The first inner engagement structure and the second outer engagement structure are configured not to engage with each other, and/or the second inner engagement structure and the first outer engagement structure are configured not to engage with each other.

Abstract: A bicycle crank assembly has a rotational center axis and comprises a crank member, a sprocket member, a sliding mechanism, a first stopper member, a second stopper member and a damping member. The crank member rotatably is arranged around the rotational center axis. The sprocket member is integrally and rotatably attached to the crank member. The sliding mechanism movably coupling the sprocket member in an axial direction with respect to the crank member. The first stopper member is attached to the crank member. The second stopper member is attached to the sprocket member. The damping member is attached to at least one of the first stopper member and the second stopper member. The damping member is configured to contact the other of the first stopper member and the second stopper member while the sliding mechanism is in operation.