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A dropper seatpost, also known as a "dropper post" or "height adjustable seatpost", is a type of seatpost that allows the rider to adjust the height of the saddle quickly and easily while riding. It is a specialized seatpost designed for mountain bikes and intended to improve the rider's control and stability when riding technical terrain.
How Dropper Seatposts Work
Mountain bike dropper seatposts have a mechanism that allows the rider to raise and lower the saddle with the help of a lever or button on the handlebar. This allows the rider to lower the saddle out of the way when descending, making it easier to maneuver the bike and shift body weight. When the rider needs to climb or ride on flat terrain, the seatpost can be easily raised again to its original position, putting the rider in the optimal pedalling position.
Dropper seatposts typically have a hydraulic or mechanical mechanism that allows for smooth and precise saddle height adjustment. They also have an internal locking mechanism that keeps the saddle securely in place when it's in the raised position. Dropper seatposts come in different lengths, diameters and stroke (the amount of travel) and can be found in different price ranges, depending on the brand and the technology used.
Installing a Dropper Seatpost
The installation of a dropper seatpost is a bit more complex than a traditional seatpost, it requires a specific frame and seat tube compatibility, and it also requires routing of the cable or hose that controls the post. It's important to check the compatibility of your frame and the required routing before purchasing one, and it is also recommended to have it installed by a professional bike mechanic.
For more information, check out our comprehensive dropper seatpost buyer's guide over on the BikeExchange Blog
