Abstract: A wheel hub is to be mounted with multiple spokes, and includes a hub body extending about a central axis, and two hub shells connected to the hub body. Each of the hub shells includes a base wall, a surrounding wall and a mounting hole unit. The base wall has a first base portion extending radially and outwardly from the hub body, and a second base portion extending from the first base portion in an axial direction relative to the central axis. The surrounding wall extends radially and outwardly from the second base portion. The mounting hole unit includes multiple first mounting holes formed in the base wall, and multiple second mounting holes formed in the surrounding wall. Each of the first and second mounting holes allows for extension of a spoke.

Abstract: A supporting device is adapted to be mounted on a bicycle wheel and includes a central cap unit, a plurality of end seats, and a plurality of covering units. The bicycle wheel includes a hub and a wheel rim. The central cap unit is sleeved fixedly on the hub and has coupling portions. The end seats are connected fixedly on the wheel rim, and are formed respectively with coupling sections registered respectively with the coupling portions. Each of the covering units has an inner end portion connected to a respective one of the coupling portions of the central cap unit and an outer end portion connected to one of the coupling sections of the end seats that is registered with the respective one of the coupling portions, so as to enhance a structural strength of the bicycle wheel.

Abstract: A wheel hub includes tubular first and second hub bodies. The first hub body includes a first surrounding wall and a first spoke-mounting segment. The first surrounding wall has a first end portion and a first coupling portion disposed on the first end portion. The first spoke-mounting segment is connected to the first surrounding wall at a position opposite to the first end portion. The second hub body includes a second surrounding wall and a second spoke-mounting segment connected to the second surrounding wall. The second surrounding wall has a second end portion facing the first end portion and a second coupling portion disposed on the second end portion and coupled fixedly to the first coupling portion.

Abstract: A supporting device is adapted to be mounted on a bicycle wheel and includes a central cap unit, a plurality of end seats, and a plurality of covering units. The bicycle wheel includes a hub and a wheel rim. The central cap unit is sleeved fixedly on the hub and has coupling portions. The end seats are connected fixedly on the wheel rim, and are formed respectively with coupling sections registered respectively with the coupling portions. Each of the covering units has an inner end portion connected to a respective one of the coupling portions of the central cap unit and an outer end portion connected to one of the coupling sections of the end seats that is registered with the respective one of the coupling portions, so as to enhance a structural strength of the bicycle wheel.