| 摘要 |
A walking wheel for a bicycle riding on a ground surface comprises a hub, many supporting members outwardly extended from the hub, and many walking elements connected to the supporting members respectively. Each of the walking elements has a stepping surface defining a toe portion and a heel portion flexibly extended therefrom. The stepping surfaces of walking elements are coaxially aligned to the hub in a toe-to-heel manner to form a discrete driving surface in such a manner that when said hub is driven to rotate, one of the walking elements is arranged for stepping on the ground surface in a human toe-heel walking manner.
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