Super-lightweight carbon seat post from #HUPcc. Low-profile design to help with saddle height positioning and 350mm of post length for flexibility and very lightweight at 208g! Option to fit round rail or oval rail saddles, with interchangeable rail clamps. HUP carbon inline seat post CSP-001 Colour: Black Dimensions: 350mm long Weight: 208g Diameter: 27.2mm Saddle clamps: Round or Oval Torque saddle rail bolts to 13Nm More installation details HERE