The Ergon CF Allroad Pro Carbon seat post 27.2 length 345mm. Thanks to its leaf spring construction, it offers a noticeable plus in comfort thanks to defined damping on rough surfaces. The pen is super lightweight, (240 grams) absolutely maintenance-free and looks fantastic. The CF Allroad Pro Carbon seat post has a very sensitive response behavior of the VCLS leaf springs for a genuine racing bike riding experience. In addition, it has an extensive range of saddle adjustment thanks to the swivel head. The floating flip head prevents changes in saddle slope during compression.