A bicycle derailleur includes a base member mountable to a bicycle frame and a cage assembly moveably coupled to the base member. One or both of a motor and/or electrical generator system may be coupled to and moveable with the cage assembly. The motor is operable to move the cage assembly. The electrical generator system includes a generator and a generator drive system. An energy storage device, spaced apart from the cage assembly, may be connected to the electrical generator system and/or motor with a flexible electrical conductor.

A position of a center of gravity of a vehicle body is easily optimized. An ABS modulator is disposed in a vicinity of a pivot bracket, which is joined to a lower rear portion of a main frame, and to which a swing arm is swingably connected.

A position of a center of gravity of a vehicle body is easily optimized. An ABS modulator is disposed in a vicinity of a pivot bracket, which is joined to a lower rear portion of a main frame, and to which a swing arm is swingably connected.

A rear derailleur of a bicycle includes a fixing portion connected to a frame of the bicycle, a linkage assembly pivotally connected to the fixing portion, a moving portion pivotally connected to the linkage assembly, a chain guide assembly connected to the moving portion, a driving assembly, a rechargeable battery for providing an electrical energy required for the motor, a coil, and a wireless charging circuit for receiving an electric power of the coil for charging the rechargeable battery. The driving assembly includes a motor including and a driving gear assembly connected to the linkage assembly. The motor includes an output shaft for driving the driving gear assembly and for driving the linkage assembly to pivot via the driving gear assembly, thereby to drive the moving portion and the chain guide assembly to move. The coil receives an external charging power and is disposed on the fixing portion, the moving portion, or the linkage assembly.

An electrically powered bicycle equipment has an attachment/detachment seat for an electric power supply unit, and a latch assembly for holding the electric power supply unit in the seated state includes a slider having a head and a back. Either the electric power supply unit or the equipment has a sliding seat for the slider, the other one has a retaining seat for the head. The sliding seat accommodates the back of the slider, which has a peripheral groove and a ring gasket housed in the peripheral groove. The groove has two aligned sections and a deeper intermediate section between them. When the slider is in the fully advanced position, a gasket portion bridges the intermediate section between the two aligned sections, and when the slider moves back, the gasket portion can curve towards the bottom of the intermediate section of the peripheral groove.

An electrically powered bicycle equipment has an attachment/detachment seat for an electric power supply unit, and a latch assembly for holding the electric power supply unit in the seated state includes a slider having a head and a back. Either the electric power supply unit or the equipment has a sliding seat for the slider, the other one has a retaining seat for the head. The sliding seat accommodates the back of the slider, which has a peripheral groove and a ring gasket housed in the peripheral groove. The groove has two aligned sections and a deeper intermediate section between them. When the slider is in the fully advanced position, a gasket portion bridges the intermediate section between the two aligned sections, and when the slider moves back, the gasket portion can curve towards the bottom of the intermediate section of the peripheral groove.

An electrically powered bicycle equipment has a component with a seat for removable attachment of an electric power supply unit, and a clamping device of the electric power supply unit to the component. The clamping device is pivotally supported by the component or the electric power supply unit about a first geometric axis stationary with respect thereto, and about a second geometric axis, which is parallel to, pivotal about, and not translatable with respect to, the first geometric axis. Either the component or the electric power supply unit has a retainer member and the clamping device has a retainable member that is urged against the retainer member. The rotation of the clamping device in a first direction about the first axis and in a second direction opposed to the first direction about the second axis allows the retainable member to be brought beyond the retainer member during clamping and unclamping.

An electrically powered bicycle equipment has a component with a seat for removable attachment of an electric power supply unit, and a clamping device of the electric power supply unit to the component. The clamping device is pivotally supported by the component or the electric power supply unit about a first geometric axis stationary with respect thereto, and about a second geometric axis, which is parallel to, pivotal about, and not translatable with respect to, the first geometric axis. Either the component or the electric power supply unit has a retainer member and the clamping device has a retainable member that is urged against the retainer member. The rotation of the clamping device in a first direction about the first axis and in a second direction opposed to the first direction about the second axis allows the retainable member to be brought beyond the retainer member during clamping and unclamping.

A bicycle wireless control device has a support body that attaches to a bicycle. The support body houses a plurality of electric-electronic devices including a wireless communication module on a printed circuit board (PCB). A coaxial cable extends from the PCB to an outer surface of the support body and functions as an antenna.

A bicycle wireless control device has a support body that attaches to a bicycle. The support body houses a plurality of electric-electronic devices including a wireless communication module on a printed circuit board (PCB). A coaxial cable extends from the PCB to an outer surface of the support body and functions as an antenna.