| 摘要 |
The invention describes a portion of a bicycle assembly that allows for a wheel hub width adjustment using replaceable dropouts of varying widths or arrangements with spacers. Alternative forms allow different arrangements for varying the wheel hub assembly without changing the dropout either by moving the dropouts relative to the mounting lugs or having extendable dropout arrangements. In addition, the dropout can have fastener holes at different locations to adjust the height of the bicycle frame relative to the ground. Moreover, the dropout can have additional fastener holes to prevent rotation of the dropout.
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