| 摘要 |
A bicycle seatpost assembly is provided with a pair of telescopically tubes, a floating piston, a valve unit and a flow control part. One end of the second tube is open such that one end of the first tube is telescopically disposed in the second tube. The floating piston forms a gas chamber in a first tube. The valve unit is immovably disposed with respect to a second tube and divides the first tube into first and second fluid chambers. The flow control part moves relative to the valve unit such that fluid flows from the second fluid chamber to the first fluid chamber through the valve unit when the flow control part is in a first position, and such that fluid flows from the first fluid chamber to the second fluid chamber through the valve unit when the flow control part is in a second position.
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