OneUp OneFifty Dropper Post

This post is designed for frames with internal cable routing and a 31.6mm seat tube diameter. Because it features the shortest stack height on the market, it is an excellent choice for frames with limited insertion depth or riders who need maximum clearance.

Yes. The post includes travel adjustment shims that allow you to reduce the total travel by 10mm or 20mm. This is a great feature if you find your seat is slightly too high at full extension or if you need to clear the rear tire on smaller frames.

Installation is straightforward because the system is cable-actuated, meaning there are no hydraulic lines to bleed. You simply route the cable through your frame, attach it to the actuator, and secure the post to your seat rails.

The sealed cartridge is designed for reliability and requires very little maintenance compared to hydraulic systems. If the post ever feels sluggish or fails to return, the cartridge is easily replaceable, making long-term service simple and cost-effective.

The updated upper bushing improves durability and increases the overlap between the upper and lower tubes. This results in less side-to-side play at the saddle, providing a more solid, stable feel while you are riding.