A bicycle wheel assembly may include a rim, a hub assembly, a plurality of spokes and a damper assembly. The damper assembly includes a damping element configured to apply a damping force against at least one spoke of the plurality of spokes. The damping force may be applied in an axial direction of the bicycle wheel and/or to a segment of the at least one spoke near the hub assembly.

A wheel rotated by a load applied to an axle remaining stationary at an eccentric position is disclosed. The present invention comprises: the wheel configured such that the outer periphery of an inner rim of the wheel assembled to a wheel hub provided at the axle to which the load is applied applies pressure to a plurality of compressive force elastic bodies provided at the inner periphery of an outer rim of the wheel; and a control roller for pushing the outer rim of the wheel at a gap of a predetermined range such that the axle provided at the wheel hub always remains stationary at the eccentric position of the wheel.

The invention is a bicycle drive assembly and it generally includes a drive chain, a drive wheel including a hub, a frame including left and right chainstays, each having a raced bearing, a cassette assembly, and an axle assembly. The cassette assembly includes a body having an inner end rotatably mounted on the right chainstay bearing, an outer free end, and a cassette including a plurality of sprockets. Cooperative torque-transferring components transfer torque between cassette and body, body and axle, and axle and hub. A freewheel mechanism, as one of the cooperative torque-transferring components, allows the bicycle to coast. A drive axle is selectably movable axially between a riding position, wherein it is rotatably mounted on the chainstay bearings and supports and drives the wheel, and a release position wherein the wheel is removable.

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.

A wheel hub assembly for tension spoke wheels is provided. The wheel hub assembly has a construction that automatically adjusts the position of the axle bearings along the rotational axis of the hub assembly to take-up slack between the axle bearings and the hub shell to prevent wheel wobble.

A mounting body and a cassette suitable for mounting on a bicycle rear wheel hub in combination with the body. The body has an inner radial portion for coupling with rear wheel hub and an outer radial portion for mounting the cassette and a portion with a plurality of attachment areas for attachment to a cassette. The cassette has an axial centering opening for centering on the mounting body and a plurality of cassette attachment areas that align with the mounting body attachment areas to unite the mounting body and cassette for transmission of pedaling torque.

An electric wheel hub is provided, including: a shell; a motor assembly, including a stator, a rotor and a shaft, the stator and the rotor being received in the shell and relatively rotatable, the rotor being connected and rotatable with the shell, the shaft defining an axial direction and a circumferential direction, the shaft being movable in the axial direction and disposed through the stator, the shaft and the stator being relatively non-rotatable in the circumferential direction; and a battery unit, received in the shell, electrically connected with the motor assembly.

An electric wheel hub is provided. The electric wheel hub includes a shell, a motor assembly and a battery unit. The motor assembly is disposed in the shell and has a stator, a rotor and a shaft. The shaft is detachably inserted within the stator. The rotor is rotatable with the shell and rotatable relative to the stator. The battery unit is disposed in the shell and electrically connected with the motor assembly. The battery unit has a cartridge and batteries positionally received within the cartridge.

A transmission assembly installed on a freehub body of a bicycle is provided. The freehub body rotates about a rotation axis and is provided with a torque transmission portion on a radial outer side. The transmission assembly includes a first adapter having a main body portion connected to the torque transmission portion, a second adapter having a second connecting portion and a pressing portion connected to the second connecting portion, and a friction member. The main body portion is sleeved on the freehub body and includes a first connecting portion having a first thread portion. The second connecting portion has a second thread portion adapted to be screwed to the first thread portion of the first connecting portion. The friction member is disposed in an accommodation space formed by the pressing portion, the radial outer side of the freehub body and one side of the first connecting portion.

A training wheel assembly includes an assembly frame and a training wheel rotatably attached to the assembly frame. The training wheel has a wheel axle extending therefrom and defining an axis about which the training wheel rotates, and an annular hub concentric with the wheel axle and rotationally fixed therewith. A plurality of successive ratcheted teeth facing the assembly frame form a circumferential inner edge of the wheel. An elastically deflectable tongue is attached to the assembly frame and is selectively extendible into a rotational path of motion of the ratcheted teeth, whereby upon rotation of the training wheel with respect to the assembly frame about the axis, contact of the elastically deflectable tongue with successive teeth of the plurality of ratcheted teeth generates an audible sound indicating that the training wheel is rotating.