The Wolf Tooth Resolve Dropper Post features a self-bleeding cartridge at the center of its system, removing air from the fluid chamber each and every time the seatpost drops. With this proprietary cartridge, we will never require manual bleeding, allowing for easy at-home service via the Wolf Tooth Right to Repair program, which includes video tutorials and more. Its short stack height allows our saddle to drop lower than any other we've ever used, providing better performance on technical descents. This high-performance dropper post also offers travel range adjustments in 5mm increments for a more comfortable fit and smoother operation thanks to an external air filter.