Tightness-automatically-adjustable double-brake bicycle locking device for electric bicycle
The utility model discloses an electric bicycle double-brake locking device with automatically adjustable tightness, which comprises a front fork and a handlebar, the handlebar is mounted at the top end of the front fork, a disc brake disc is arranged at the bottom end of the front fork, a disc brak...
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Format: | Patent |
Sprache: | chi ; eng |
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