Crankbrothers Highline 11 Dropper Seatpost - 30.9, 125mm, BlackBuilt without compromise, the Highline 11 combines premium materials with the tried and trusted hydraulic IFP cartridge system, resulting in Crankbrothers' lightest dropper post yet. Featuring a carbon quill and titanium hardware, the Highline 11 sheds up to 100 grams over the Highline 7, all without compromising on any features or construction. The post maintains all of your favorite elements such as infinite adjustment and a Trelleborg sealing.