The Roval Terra seatpost is the best choice for riding mixed terrain gravel or rough roads because it smooths the ride by allowing significant vertical compliance. The secret to this ride smoothing post is in the composite layup that we utilized. By utilizing composites with varying elongation characteristics at specific locations in the post we enabled vertical compliance for comfort while retaining requisite strength for mixed terrain riding all at a sub-200 gram weight (27.2 x 330 x 0).