An apparatus including a seat post. The seat post can include an upper post, a lower post, a first mechanical energy source, a second mechanical energy source, and a control mechanism. The first mechanical energy source can be configured to contract the lower post and the upper post. The second mechanical energy source can be configured to expand the lower post and the upper post. The control mechanism can be configured to activate the first mechanical energy source to contract the lower post and the upper post to a first predetermined position.
Automatic drop seatpost
2016-03-01
Patent
Electronic Resource
English