A bicycle mounting mechanism and battery box assembly installed in a bicycle frame of a bicycle is provided to include a battery box and a mounting mechanism. The battery box includes an abutment recess and an opening. The mounting mechanism includes a grip and a locating component unit being connected to the bicycle frame and defining therein an accommodation chamber for accommodating the battery box. The grip is pivotally connected to the locating component unit and includes an abutment end portion and a push end portion. The abutment end portion is capable of inserting into the accommodation chamber and in engagement with the opening with a rotating of the grip. The push end portion is capable of inserting into the accommodation chamber and abuts against the abutment recess with a further rotating of the grip.

Electric power can be generated by using an existing bicycle without impairing the durability of the tire of the bicycle. The bicycle generator device (50) comprises a housing (52) configured to be attached to a frame (18) of a bicycle (10), a generator (54) attached to the housing (52), an annular rotational input member (81) for rotationally driving the generator (54), the rotational input member being rotatably mounted on the housing and positioned around a crank axis line which is a rotational center line of a crankshaft (24) and a crank arm (26) for a pedal of the bicycle, and a connecting member (90, 130) connecting the rotational input member (81) to the crankshaft (24) or the crank arm (26) in a torque transmitting relationship.

Electric power can be generated by using an existing bicycle without impairing the durability of the tire of the bicycle. The bicycle generator device (50) comprises a housing (52) configured to be attached to a frame (18) of a bicycle (10), a generator (54) attached to the housing (52), an annular rotational input member (81) for rotationally driving the generator (54), the rotational input member being rotatably mounted on the housing and positioned around a crank axis line which is a rotational center line of a crankshaft (24) and a crank arm (26) for a pedal of the bicycle, and a connecting member (90, 130) connecting the rotational input member (81) to the crankshaft (24) or the crank arm (26) in a torque transmitting relationship.

A distance determination method has: detecting a first received signal strength indicator (RSSI) of a first electronic device by a second electronic device; detecting a second RSSI of the second electronic device by the first electronic device; obtaining the first RSSI from the second electronic device by the first electronic device; and calculating a motion direction and a distance of the second electronic device relative to the first electronic device according to the first RSSI and the second RSSI by the first electronic device.

A camera housing device is provided in this disclose, including a base, a cover, a first electrical connection terminal, a first indicating light, and a second electrical connection terminal. A receiving space is defined on the base to receive a camera. The cover is positioned on the base and covers the receiving space. The first electrical connection terminal is positioned on the base. The first indicating light is positioned on the cover. The cover is capable of emitting a warning light according to a warning signal sent by the camera. The second electrical connection terminal is positioned on the cover and electronically coupled with the first electrical connection terminal. A camera equipment and a rear view system are also provided in this discloses.

A hub is provided for a human-powered vehicle. The hub basically includes a hub axle, a member, a cable and a sealing element. The member is provided to the hub axle. The cable extends through a passageway. The sealing element is configured to occupy a space between the passageway and the cable.

A hub is provided for a human-powered vehicle. The hub basically includes a hub axle, a member, a cable and a sealing element. The member is provided to the hub axle. The cable extends through a passageway. The sealing element is configured to occupy a space between the passageway and the cable.

A hub assembly is provided for a human-powered vehicle. The hub assembly includes a hub axle, a hub body, a bearing spacer and a first hub body bearing. The hub body is rotatably mounted on the hub axle to rotate around a rotational center axis of the hub assembly. The bearing spacer has an inner peripheral end provided to the hub axle and an outer peripheral end spaced radially outward of the inner peripheral end in a radial direction with respect to the rotational center axis. The first hub body bearing is disposed at the outer peripheral end of the bearing spacer and rotatably supporting the hub body.

Systems and methods are disclosed herein for an interchangeable electric scooter with seating option for 2 passengers is proposed. The assembly provides various advancements including but not limited to a glossy finish, a rectangular front frame member, an aerodynamic manual brake fin, a communication device support member, floor and front panels having multiple colors and designs, On/Off digital locking system, front and back cameras, solar panel, retractable umbrella, cell phone charging spot and holder, Bluetooth connectivity, GPS enabled, smart helmet, an integrated router forming a Wi-Fi hotspot, a daytime running lamp and back lit lights, number plate, a help switch, a sound system, a camera for livestream and social media synchronization, a communication device charger, an integral GPS.

An actuation controller for a rider posture changing device of a human-powered vehicle comprises a detector and a controller. The rider posture changing device includes a first member, a second member, and an electrical actuator configured to move the second member relative to the first member. The detector is configured to detect actuation information relating to an actuation state in which the electrical actuator moves the second member relative to the first member. The controller is configured to evaluate the actuation state in accordance with the actuation information detected by the detector.