A bicycle component includes a hub shell for a wheel of an at least partially muscle-powered bicycle, wherein the hub shell is rotatably supported by at least one bearing device. An adapter unit is disposed on one end of the hub shell. The adapter unit includes an inner stopper having an inner stop face for transferring a clamping force to the bearing device and an outer stopper with an outer stop face transmitting at least part of the clamping force. The adapter unit includes a first and a second stopper component transmitting the clamping force.

A tensioning device for bicycle front and rear wheel assemblies. A skewer assembly with a thumbnut is securable to the wheel assembly with a quick-release assembly. Portions of the skewer assembly are removable from the quick-release assembly by turning the thumbnut a partial turn, such as a quarter of a turn. Removal of the skewer assembly allows the front wheel to be removed. In another embodiment, the skewer assembly is able to be removed by turning the quick-release assembly by a partial turn, such as a quarter of a turn.

A hub assembly is provided for a human powered vehicle. The hub assembly basically includes a hub axle, a hub body, a thru-axle and an electrical cable. The hub axle has a through bore extending between a first axial end and a second axial end. The hub body is rotatably disposed around a center axis of the hub axle. The thru-axle is configured to be disposed in the through bore of the hub axle. The thru-axle includes a first axle part and a second axle part. The second axle part is detachably coupled to the first axle part in the axial direction. The electrical cable extends from an interior space of the hub body through an opening in the hub axle and into the through bore. The electrical cable extends in the axial direction along a section of the first axle part.

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 bicycle wheel securing structure is basically provided with an axle member, a head member, a lever member and an adjusting member. The axle member is at least partially hollow, and includes a first end portion, a second end portion and a vehicle body engagement portion. The vehicle body engagement portion is provided to the second end portion for engaging a bicycle frame. The head member is disposed on the first end portion. The lever member is configured to turn the head member around an axis between a first position and a second position. The lever member presses the head member from the first end portion to the second end portion by being turned from the second position to the first position. The adjusting member is provided inside the axle member for adjusting an axial position of the head member.

The present disclosure provides a hub unit including a fixing shaft disposed along a rotation center shaft; a hub body rotatably disposed at the fixing shaft through a bearing and having space inside; a brake disk fixed in the hub body by a bracket and formed in a circumference direction on a basis of the fixing shaft; a fixing member where one side of which is fixed to the fixing shaft; a caliper formed at the other side of the fixing member and a part of the brake disk is inserted into the caliper; and a brake pad where both inside surfaces of the brake pad are contacted with both side surfaces of the brake disk.

A quick release mechanism for a wheel includes a hub and a clip, which interact with a wheel or roller that may or may not be part of the invention per se. The hub is disposable on a drive shaft such that it will rotate with the drive shaft. An optional hub cap is disposable on the wheel and has an opening that is complimentary to the geometry of the hub to allow engagement thereof such that the hub the hub cap rotate together. The clip is disposable on the hub in a closed or an open position so that the hub cap cannot or can be removed from the hub.

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 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 rotor cover comprises a cover body and a biasing member. The cover body is configured to at least partially cover a disc brake rotor rotatable relative to a bicycle frame about a rotational center axis. The biasing member is configured to bias the cover body in an axial direction parallel to the rotational center axis. The biasing member is provided between the cover body and the bicycle frame in the axial direction.