Supporting device for a bicycle wheel

摘要

A supporting device for a bicycle wheel includes a bicycle frame, a single vertical support tube and restraining unit. The single vertical support tube has upper and lower sections telescoped to one another and a shock-absorbing unit disposed between the upper and lower sections. The upper section is connected to the bicycle frame. The lower section is adapted to carry the bicycle wheel. The restraining unit interconnects the upper and lower sections of the supporting tube and prevents the upper and lower sections of the support tube from rotating about an axis of the support tube with respect to one another.