A hub assembly is provided for a human-powered vehicle. The hub assembly includes a hub axle, a hub body, a pawl support body, at least one pawl, a sprocket support body, at least one sprocket support bearing, a ratchet body and a plurality of ratchet teeth. The hub body is rotatably mounted on the hub axle. The pawl support body is connected to the hub body. The pawl is movable between a driving position and a non-driving position. The at sprocket support bearing rotatably supports the sprocket support body on the hub axle. The ratchet body is connected to the sprocket support body. The ratchet teeth engage the pawl to transmit a driving force from the sprocket support body to the hub body while rotating in a driving rotational direction. The sprocket support bearing is disposed opposite to the hub body with respect to the ratchet teeth.

An aerodynamic bicycle rim comprising: a circumferential outer portion comprising a circumferential outer surface, the circumferential outer portion adapted to seat a bicycle tire; a nose; and a set of sidewalls, each sidewall extending radially from the nose of the aerodynamic bicycle rim to a corresponding transition to the circumferential outer surface to form a rim body having a maximum rim body width that is greater than a maximum width of the bicycle tire. The aerodynamic bicycle rim is operable to seat the bicycle tire so that the aerodynamic bicycle rim and the bicycle tire form an asymmetrical cross-sectional shape.

The present invention relates to a motorized hub assembly for a bicycle wheel. The assembly has a hub shaft extending along a longitudinal axis with a cavity to receive a quick release axle. A bearing having a radially inner ring is arranged radially outside the hub shaft. A hub body is rotatably mounted on the hub shaft about the longitudinal axis and an electric motor is arranged inside the hub body. A routing opening for passage of electrical conductors for the electric motor pass through a routing opening arranged radially between the inner ring of the bearing and the hub shaft.

A levitating bicycle hub coupling structure using a magnet in the internal contact structure is provided. The levitating bicycle hub coupling structure in which a non-contact type structure in a levitated form is provided to reduce friction enables the position of a hub inner shaft member for transmitting the load of a user to an inner bearing part to be changed to an upper or lower preset position, and fixes the shaft member at a changed position so as to offset the load applied to the shaft member by the repulsive force of the magnets, such that the load is not applied to the bearing parts positioned at both sides of the shaft member or is significantly reduced so as to improve rolling performance, and thus riding of the bicycle becomes smoother and easier.

A pressure sensing assembly configured to be attached to a bicycle wheel having a tire and a rim mounted to the tire. The pressure sensing assembly includes a housing, a pressure transmitting member, a sensing chamber defined by the housing and the pressure transmitting member, and a sensing element. The pressure transmitting member is coupled the housing and has a central portion offset from the plane in a first direction. The sensing element is offset from the plane in a second direction opposite the first direction. The pressure transmitting member is configured to transmit a pressure in the tire to the sensing element via the sensing chamber.

A wheel hub motor includes a shaft, a stator unit and a rotating unit. The stator unit includes a coreless stator set. The rotating unit includes a rotating seat set sleeved on the shaft, a bearing set, and two rotor sets fixedly mounted to the rotating seat set. The rotating seat set defines a bearing mounting space adjacent to the shaft and receiving the bearing set therein, and a rotor space radially spaced apart from the bearing mounting space and receiving the rotor sets therein. The coreless stator set is disposed between the rotor sets such that, when being energized to generate a magnetic field, the rotor sets rotate about the shaft so as to drive the rotating seat set and the bearing set to rotate.

A manufacturing method for a fibrous composite bicycle rim , and a tool having two molding devices and one circular device. The two molding devices each have one flank contact surface. A molding device is selected and a matching auxiliary molding part is connected therewith, forming a mold surface for the rim base. A first fiber composite layer is applied to the molding device and the auxiliary molding part. The other molding device is covered with a first fiber composite layer, forming the layer of the other rim flank. A circular device is formed of annular segments has a circumferential rim well contact surface and is covered by a first fiber layer, which forms the rim well. The circular device and the molding devices are connected. The fibrous composite material is allowed to set, the annular segments and the molding devices are removed, and the rim is taken out.

A tool device and its use for manufacturing a bicycle rim, having opposite rim flanks, a rim well and a rim base and rim flanges configured on the radially outwardly ends of the rim flanks, wherein the tool device includes two molding devices and a circular device. The circular device forms the rim well and the axially inwardly oriented surfaces of the rim flanges. The circular device includes an annular unit of a less elastic material and at least one cover of a more elastic material. Alternately, the molding devices each include a molding unit of a less elastic material and at least one cover of a more elastic material, for attachment thereto. The thickness of the cover is between one eighth of the minimum wall thickness of the rim well of the rim manufactured and eight times the minimum wall thickness of the rim well of the rim manufactured.

The present invention provides a wheel hub for a vehicle, including: a) a wheel axle defining an axis of rotation for the wheel; b) a hub body rotatably coupled to the axle for rotation about the axis of rotation, the hub body defining an internal cavity; and, c) a braking assembly, including: i) at least one first annular plate disposed within the internal cavity about the axle, the at least one first annular plate rotatably fixed with respect to the hub body so as to rotate therewith about the axis of rotation; ii) at least one second annular plate disposed within the internal cavity about the axle and adjacent to the at least one first annular plate, the at least one second annular plate rotatably fixed with respect to the axle, and at least one of the first and second annular plates being slidably movable within at least part of the internal cavity; and, iii) an actuator disposed within the internal cavity and configured in use, to cause an axial load to be applied to the slidably movable plate to thereby cause the at least one first and second annular plates to frictionally engage thereby applying a braking load between the hub body and wheel axle so as to brake the wheel of the vehicle.

A bicycle hub includes an axle, a main body, a freehub body, and a clutch, which are engaged with the axle, wherein the clutch includes a first ratchet and a second ratchet. The first ratchet and the second ratchet are respectively engaged with the main body and the freehub body. The first ratchet has a first engaging surface, and the second ratchet has a second engaging surface facing the first engaging surface. The bicycle hub is characterized in that a minimum of number of first ratchet teeth on the first engaging surface is seventy-two, and a number of the second ratchet teeth on the second engaging surface is lesser than the number of first ratchet teeth. With such design, when the first ratchet is meshed with the second ratchet, the freehub body could stably drive the main body, and a total weight of the bicycle hub could be decreased.