Crankbrothers Highline XC/Gravel 27. 2 Dropper Post - OE Packaged Infinite adjustment. Simple installation. The Crankbrothers Highline XC/Gravel Dropper Post is purpose-built for the 27. 2mm seatpost diameter found on most XC and gravel bikes - bringing all the benefits of a dropper post to bikes that have traditionally gone without. A self-contained IFP hydraulic cartridge delivers smooth, controlled operation with infinite saddle height adjustment across the full travel range, while a linear actuator ensures quick, consistent return speed. Internal routing keeps the cockpit clean, and the quick connect mechanism makes cable installation straightforward. Available in five travel options from 60mm to 125mm to suit a wide range of frame designs and rider preferences. 7075-T6 aluminum construction and a 2-year warranty. Features OE Packaged does not ship in Crank Brothers-branded packaging, and does not include a dropper remote27. 2mm seatpost diameter - fits most XC and gravel bikes without an adapter Self-contained IFP hydraulic cartridge for smooth, controlled, infinite saddle height adjustment Linear actuator for quick, consistent return speed Internal cable routing for a clean setup Quick connect mechanism for easy cable installation and removal2-bolt standard saddle head for broad saddle compatibility7075-T6 aluminum construction2-year warranty SPECIFICATIONSSeatpost Diameter27. 2mm Material7075-T6 Aluminum Actuation Cable (Jagwire cable and housing included)Remote Sold Separately Cartridge Self-Contained IFP Hydraulic Return Speed Linear Actuator Routing Internal Saddle Head2-Bolt Standard Setback0mm Min. Stack Height60mm (all travel options)Warranty2 Years Intended Use XC, Gravel | Crankbrothers | Highline Xc/gravel 27. 2 Oem Dropper 27. 2Mm, 80Mm | Aluminum