The linkages geometry of the Dual-Position Seatpost was specifically designed to provide an optimized aero riding position on a road bike. Starting with your existing road saddle position, the linkage maintains the same bottom-bracket-to-saddle distance in the aero position, allowing you to ride with proper leg extension in both positions. Furthermore, we intentionally chose the amount of forward travel to provide a comfortable, efficient, aerodynamic aero riding position, without moving so far forward as to compromise the handling of your bike in the aero position.