| 摘要 |
PURPOSE: The fluid pressure pumping load created in the chain the on-going basis is eliminated. Cycle saddle high and low adjustment system. CONSTITUTION: A cycle saddle(400b) high and low adjustment system. In the bicycle frame one part bicycle peddle crank axis one side. The hydraulic pump operational dynamic generator is composed. The hydraulic pump(200) is composed in the bicycle frame part of one side. The fluid pressure pumping unit part is composed in the hydraulic pump one side.
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