The Highline 7 is poised to be Crank Brothers' best dropper post yet thanks to its smooth feel, easy installation, and shorter insertion length that allows it to fit a wider range of bikes. Premium Trelleborg seals keep out dirt and grime when you're riding in wet conditions, while the hydraulic IFP cartridge ensures smooth actuation and long-term durability. And to show you how confident Crank Brothers is with their design, the post is backed by a 4-year warranty that lets you shred with confidence.