Two assemblies in derailleur

The utility model discloses a two assemblies in derailleur, including two, two off-axials incline to overlap in proper order from a left side to the right side and are equipped with fourth speed gear, three fender gears, two fender gears, the fender gear and the gear that reverses gear, the left sid...

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Bibliographische Detailangaben
1. Verfasser: YI YANMING
Format: Patent
Sprache:eng
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