Crankbrothers highline dropper seatpostyears of research development and rigorous testing has given rise to the crankbrothers highline dropper seatpost the worlds finest dropper post and the worlds most ergonomic remote unique spherical adjustment with near infinite rotation and tilt customisation options for perfect cockpit ergonomics the post features premium trelleborg sealing exclusive igus ll glide bearings and keys jagwire cable and housing and a self contained hydraulic cartr