Cane Creek's Thudbuster ST Seatpost delivers a smooth ride so we can stay planted in the saddle while pedaling across gravel, as opposed to hovering over it while we make our way through rough sections of backroads. The Thudbuster features a short 1. 3in of four-bar travel to keep rough terrain in check, and it effectively smooths the ride and adds cushioning so we can tackle whatever terrain is coming our way.