The Resolve Dropper Post uses a unique, proprietary design with the patented Resolve self-bleeding cartridge at its core. Any air that gets into the fluid chamber is automatically purged with every up/down motion, which means it never sags so there is no need for manual reset or purchase of new cartridges. It has the shortest stack height of any dropper post at 32mm and is one of the lightest dropper posts on the market when looking at grams per millimeter of travel.Designed, developed, and assembled at Wolf Tooth in Minnesota, USA with CNC machined parts 100% user-serviceable by any experienced home bike mechanic7075 and 7050 aluminum for the structural partsSelf-bleeding cartridge that removes air from the fluid chamber with every actuationShort insertion length is vital for smaller bikes, frames with curved seat tubes, and frames with seat tubes that have bottle bossesCable actuated with infinite height adjustment, lever sold separatelySpacers for travel adjustment available individually or as kitsItem SpecificationsActuationCable RemoteAdjustmentInfiniteCable RoutingInternalClamp StyleStandard RailsColorBlackDefined ColorBlackDiameter30.9Length423MaterialAluminumMax Height323Min Height192Offset (mm)0Remote PositionLeftRemote PositionRightTravel (mm)160Weight490 Wolf Tooth Wolf Tooth Resolve Dropper Seatpost Rev 1 Dropper Seatpost UPC: 810006806250