Wolf Tooth Resolve Dropper Seatpost - 30.9 125mm Travel Black Rev 2Rev2 updated internal offer a reduced breakaway force and additional sizes The Resolve Dropper Post uses a unique, proprietary design with the patented Resolve self bleeding cartridge at its core. Any air that bleeds into the fluid chamber is automatically purged with every up down motion and it never sags so there is no need for manual reset Travel can be adjusted with spacers Shortest stack height of any dropper post at 32mm from the bottom of the