Bicycle helping hand front wheel

The utility model relates to a driving transmission structure, especially a bicycle helping hand front wheel. Aiming at the problems of the prior art, the utility model relates to a bicycle helping hand front wheel that simple structure, convenience are implemented, the operation is stable is provid...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHANG HAISHUAN, ZHANG YANQIU
Format: Patent
Sprache:chi ; eng
Schlagworte:
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