DT Swiss D 232 Dropper Post. Features: Developed for cross country riding and racing Upside down technology allows for a very robust release mechanism The fully mechanical system is highly reliable and has no need for bleeding due to the release being driven by a spoke Tool-free maintenance can be performed quickly without removing the post from your bike Quick release actuator allows for easy assembly and disassembly Aluminum seat tube and saddle clamp L1 Remote, cable and housing included Specs: Travel Drop:60mm Diameter:27.2mm Total Length:400mm Color:black Weight:416g