Black 30.9 mm Dropper Standard Bicycle Seatposts
We define color as the main color of the item. It may have accents or highlights in other colors.
The seatpost diameter must match to the seat tube diamater of your frame. If replacing a seatpost, you can usually find this measurement etched near the bottom of your current post.
Dropper posts have the ability to change heights. This has become a choice for mountain bike riders that prefer multiple riding positions.