A torque support assembly, for supporting a torque of a hollow shaft onto a frame of a bicycle, comprising a cam comprising a cam hole for receiving therein a distal end of the shaft, wherein the cam hole and the shaft are interlockingly shaped for rotationally locking the cam and shaft with respect to each other, an adapter interface comprising a first face defining a seat for the cam, and an adapter interface through hole which extends from the seat on the first face and is coaxial with the cam hole for allowing a thru-axle to extend there through. The adapter interface comprises an upstanding wall, extending outward from the first face, defining an inner support surface of the seat on which the cam is supported against rotation.

An adjustable axle retaining structure is disclosed. The structure includes an axle receiving feature on a first leg of a fork assembly and a retaining sleeve within a clamping member on a second leg of the fork assembly. An axle is inserted through the clamping member, the wheel hub and coupled with the axle receiving feature. A component of the axle is tightened thereby moving the retaining sleeve partially out of the clamping member and toward the wheel hub until the wheel hub is in contact with both the retaining sleeve and the axle receiving feature, wherein the moving of the retaining sleeve allows the axle to radially couple the wheel hub with the fork assembly without modifying a preestablished geometry of the fork assembly.

A quick-release structure includes a fork, a clamping unit, and a quick-release unit. The fork has a receiving space. The clamping unit includes a base, a plurality of arc-shaped clamping members, an elastic ring, and a shaft cover. The base is fixed in the receiving space. The base has a circular cavity. The circular cavity is provided with a plurality of elongated grooves. The arc-shaped clamping members each have a first axle to slide in a corresponding one of the elongated grooves and a second axle. A center of the arc-shaped clamping members is formed with an adjustable clamping opening. The shaft cover is formed with a plurality of axle grooves arranged annularly. The second axles of the arc-shaped clamping members are pivotally connected to the respective axle grooves. The quick-release unit has a shaft. After the shaft passes through the adjustable clamping opening, the adjustable clamping opening subjected to the elastic force of the elastic ring is retracted to clamp the shaft.

A handlebar foldable mechanism and a tool for riding instead of walk are provided. The handlebar foldable mechanism includes a base, a stem, a first locking assembly, a lever and a second locking assembly. The base is provided with a first snapping groove, the stem is connected to the base and is pivotable between an unfolded position and a folded position, the first locking assembly is pivotably connected to the stem and is configured to be engaged with the first snapping groove when the stem is pivoted from the folded position to the unfolded position, the lever is pivotably connected with the base, the second locking assembly is mounted to the lever, and the second locking assembly is configured to be connected to at least one of the base and the stem when the stem is at the unfolded position.

A quick-release device for a bicycle includes a shaft having a locking assembly at one end and an inner sleeve in another end. The inner sleeve is kept a distance apart from an end edge of a through hole of the shaft to form an inner annular trough portion at an outer end of the through hole. A threaded cylinder is insertedly connected to the inner annular trough portion. A perforation is defined in the threaded cylinder. One axial end of the threaded cylinder has a cylindrical flange. The cylindrical flange is insertedly connected to the inner annular trough portion of the shaft. A bolt is insertedly disposed in the perforation of the threaded cylinder. The bolt passes through the perforation and is inserted into the shaft to be screwed to the inner sleeve, so that the bolt presses and locks the threaded cylinder and the shaft.

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.

A quick-release device of a bicycle is provided for being connected to a first fork arm and a second fork arm of a frame and includes a rod member, an abutting unit and a screwing unit. The rod member is for being disposed through the first and second fork arms. The abutting unit is arranged on one of two ends of the rod member and for optionally tightly abutting against the first fork arm. The screwing unit is arranged on the other of the two ends of the rod member for being adjustable positioned on the second fork arm and has a first threaded section, and a thread pitch of the first threaded section is at least greater than or equal to 2 mm.

An axle assembly for a vehicle includes an axle shaft having a bolt end and a lever end. The axle assembly includes a cam assembly coupled to the lever end of the axle shaft. The cam assembly includes a cam housing, a cam follower shaft coupled to the cam housing, and the cam follower shaft is located within the axle shaft. The cam follower shaft does not extend the full length of the axle shaft. The cam shaft is coupled to the cam follower shaft, and a lever is coupled to the cam assembly. The lever is rotatable from an open position to a closed position, and an angle of maximum rotation for the lever between the open position and the closed position is less than 180 degrees.

A quick release device for at least partially muscle-powered two-wheeled vehicles, having an axle unit and a clamping mechanism. The axle unit includes an axle extending in the axial direction, a locking device at the first end of the axle unit and a fastener at a second end of the axle unit. The clamping mechanism is suitable for mounting and demounting the axle unit to a two-wheeled vehicle. The clamping mechanism has an operating lever and a clamping component, the latter is non-rotatably coupled with the axle unit and is decoupled from the axle unit. The clamping mechanism has an intermediate device with an actuating unit, which ensures in a first position a non-rotatable connection of the clamping component and the operating lever, and in a second position, allows the operating lever to pivot relative to the clamping component while the clamping component is non-rotatably coupled with the axle unit.

A handlebar foldable mechanism and a tool for riding instead of walk are provided. The handlebar foldable mechanism includes a base, a stem, a first locking assembly, a lever and a second locking assembly. The base is provided with a first snapping groove, the stem is connected to the base and is pivotable between an unfolded position and a folded position, the first locking assembly is pivotably connected to the stem and is configured to be engaged with the first snapping groove when the stem is pivoted from the folded position to the unfolded position, the lever is pivotably connected with the base, the second locking assembly is mounted to the lever, and the second locking assembly is configured to be connected to at least one of the base and the stem when the stem is at the unfolded position.