OneUp Components Dropper Post Black, 30.9x450mm/170mm

The build quality on this is excellent. There is absolutely no play in any direction and it actuates very smoothly. The only complaint I have, which may in fact simply be set-up error, is that it does not always fully extend. However, if you sit back down for a brief second, pressing the lever a second time will get it to extend fully. When I actuated the seat post when it was not installed on the frame, it did not have this issue, and worked flawlessly. I might simply need to put more air in the chamber. This post was short enough to fit in my frame to the max insertion depth, and surprisingly the full 170mm puts the seat to the exact riding height I need so I didn't need to adjust it. I don't think that could have worked out better. For reference I ride a small Canyon Strive CF 9.0 Race, and I'm 5'6". This is a short-term review, as I've only used it on about 5 rides. My biggest beef is with the ispec-II lever. It keeps rotating on the bars.

After weeks of research and talking with the local pros, I decided on the OneUp for several reasons:Low maintenanceCost EfficientQuality CraftsmanshipNot HydraulicInternally RoutedAfter combining this bad boy with a PNW drop lever I've had more fun shredding down the bends than I have ever had before. The ability to just pop this post back into place when I need to start peddling and to quickly get it out of the way when I need to get behind the saddle is just amazing. The action is absolutely smooth, reacts immediately, and never catches.Love this post, 10/10 would recommend.

Amazingly easy to install and functions perfectly (once you pressurize it to the correct PSI).

Works great but need to have instructions to install