A braking system is presented that comprises a brake sphere rotor that is mounted to the wheel hub of an axle. The braking system incorporates a caliper arm assembly that comprises at least one caliper arm. Each caliper arm further comprises hemispherical friction material located between the caliper arm and the brake sphere rotor.

A component assembly for a human-powered vehicle, the component assembly basically includes a member and a wire rod. The member includes a wall that has a first surface, a second surface opposite the first surface and an opening. The wire rod passes through the opening in the wall of the member. The wire rod includes a first portion located on the first surface side of the wall and a second portion located on the second surface side of the wall. The first portion includes an abutment portion that contacts the first surface adjacent the opening in the wall to suppress axial movement of the first portion of the wire rod through the opening in the wall with respect to an axial direction with respect to a center axis of the opening in the wall.

A hub motor is disclosed, the hub motor is mounted on an axle assembly, the an axle assembly includes an axle rod and an axle sleeve, and an independent cassette flywheel is provided at one end of the axle sleeve where an end cover is located, a limiting sleeve is disposed outside of the cassette flywheel to prevent the cassette flywheel from detaching from the axle sleeve, and an anti-rotation piece for preventing rotation of the axle sleeve is provided at another end of the axle sleeve where a wheel hub is located.

An axle assembly having a hose, a spindle plug, a sleeve, and a rotary union adapted to be fluidly connected to a tire. The spindle plug may be disposed in a spindle. The hose may be fluidly connected to the rotary union. The sleeve may encircle the hose and extend from the spindle plug to a stator of the rotary union. The sleeve cooperates with the spindle plug to limit rotation of the stator and the hose.

Acoustic medium of ultrasonic grip system consists of piezoelectric generator (1), wheel knuckle (9), ball bearing (10), wheel hub (11), wheel rim (15) and tyre of motor-car (20). The piezoelectric generator (1) creates ultrasound vibrations which are transferred through the acoustic medium to the surface of tyre (17). The ultrasound vibration on the surface of tyre (17) results in the separation of the surface of tyre (17) from the liquid (18) that may be found on tarmac (19) during the rain, which results in the fact that despite the unfavourable weather conditions the motor-car has an optimum rolling surface of tarmac. Also, the vibrations on the surface of tyre (17) in interaction with micro texture of tarmac increases the contact surface of tyre with tarmac, which results in the increase of coefficient of friction, higher grip of tyre and reduction of braking distance of motor-car. The ultrasonic grip system is activated at sudden braking, resp. activation of ABS system. Also, the system is activated on the occasion of activating the ESP and ASR system.

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.

A hollow flywheel gyro assembly mounted within the wheel supports of a two wheeled vehicle having a split drive hub for providing continued rotational motion to the hollow flywheel gyro as the vehicle is stopped when the brake is engaged and functioning to create gyroscopic stability about the drive wheel while simultaneously creating a stability enhancing air envelope surrounding the drive wheel and hollow flywheel gyro by the intake of adjacent air through the air intake apertures and the exhaust of that air volume from within the hollow flywheel gyro through air exhaust apertures as the hollow flywheel gyro rotates independently of the drive wheel of the vehicle causing the vehicle to remain in an upright equilibrium with the vehicle stopped.

An electromagnetic induction hub includes a first disc having a first magnet, a second disc having a second magnet, a coil disc formed between the first disc and the second disc, a bearing penetrates the first disc, the second disc and the coil disc.

A vehicle wheel includes: a wheel body; a single Helmholtz resonator; and a suspension member slidably engaged with the wheel body and suspending the Helmholtz resonator inside a tire air chamber from the wheel body.