A good seatpost is a blessing and a bad one is a curse. In our book, the best way to construct a great post is to make it with a 2-bolt head. If you're tired of putting up with a saddle that slides in its clamp or you've had the nose of your saddle shoot skyward on a botched cyclocross remount, we have the post for you. On FSA's K-Force Seatpost SB0 you get a fully unidirectional carbon fiber post with its Minimal Top Clamp that allows super easy and infinite adjustment of both saddle angle and fore-and-aft. The SB0 features a zero-offset clamp for a forward saddle position favored by triathletes, time trialist, or short-femur riders. Carbon-fiber construction provides plenty of stiffness and vibration damping at a weight that's perfect if you are chasing grams. It comes in 27. 2mm diameters in 350mm length and 31. 6mm in both 350 and 400mm lengths. This post is plenty strong for both road and mountain bike use.