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.

The disclosure refers to a hub for a bicycle running wheel, a bicycle drive system and a bicycle. In an embodiment a hub for a bicycle running wheel includes a hub body and a receiving area configured to receive a force transmission means, wherein the hub body and the receiving area are a single part or are firmly connected together.

A bicycle rear wheel adapter has an annular body that abuts a sprocket-carrying body that extends in an axially outer direction and receives sprockets in radially peripheral positions. A coupling element on the annular body couples with the sprocket-carrying body so the adapter rotates as a unit with the sprocket-carrying body, and a sprocket-receiving seat on the annular body couples with a sprocket so the adapter rotates as a unit with the sprocket. The adapter is suitable for cogsets with small sprockets grouped in a monolithic grouping.

A bicycle transmission device for connecting to a freehub body on a rear wheel, which has convex keys arranged radially on the periphery. The bicycle transmission device includes a connecting member, a fastener, and a cogset assembly. The connecting member includes a cylindrical body portion, connection keys protruding from a periphery of the body portion, a cut groove passing through the body portion, and first and second connecting seats located on two sides of the cut groove. The inner wall of the body portion has concave grooves corresponding to the convex keys. The fastener is adapted to be connected to the connecting seats and to pull them together. The cogset assembly includes a cogset seat and sprockets. The cogset seat has a first socket hole fitting around the connecting member and connection grooves corresponding to and adapted to be connected to the connection keys. The sprockets with different numbers of chain teeth are adapted to be connected to the cogset seat.

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 wheel is assembled and fitted with a frame of the scooter, and includes a bearing support, a hub, at least one bearing and a hollow area. The bearing support includes an inner surface facing towards a rotation center of the wheel. Each bearing includes an outer ring and an inner ring, the outer ring is fixedly connected to the hub, and the inner ring and the frame are fixedly connected to the bearing support, respectively. The hollow area is surrounded by the inner surface.

A bicycle freewheel assembly is provided which is capable of being readily and reversibly switched from fixed-gear to freewheel operation, without the necessity of removing the wheel from the bicycle. The freewheel assembly is mountable on pre-existing freewheel hubs.

An axle assembly, including: an axle sleeve having first end face; a second end face axially spaced from said first end face and an axially extending opening therethrough;a control shaft assembly including: a control shaft and an engagement element having an engagement surface. The engagement element is axially retained to the control shaft. The control shaft assembly extends within the opening to be axially overlapping the axle sleeve. The engagement element has a restraining engagement with the axle sleeve at an engagement interface between the engagement surface and opening; the restraining engagement providing a restraining resistance to restrain axial displacement between the control shaft and axle sleeve. The engagement element fully circumscribes the control shaft about the axial axis and is radially self-supporting.

A wheel hub has a tubular body having a rotational axis and at least one spoke attachment part protruding radially outward from the tubular body. The spoke attachment part includes a cavity, a first spoke attachment hole, a first spoke head contact surface, a second spoke attachment hole, and a second spoke head contact surface. The cavity includes a spoke insertion opening that opens from the spoke attachment part in an axially outward direction parallel to the rotational axis. The first spoke attachment hole extends from the cavity in a first direction. The first spoke head contact surface is located adjacent the first spoke attachment hole. The second spoke attachment hole extends from the cavity in a second direction. The second spoke head contact surface is located adjacent the second spoke attachment hole.