Lightweight, stable and pretty stiff to boot - the FSA OS-99 CSI Stem for your road bike! Not only was it 3D-forged and CNC-machined but it a carbon weave skin was applied as well. This combination makes the stem particularly stable and stiff, thereby reducing vibrations and increasing comfort. Of course, its really light too! The strategically placed bolts on the clamps serve to further improve the overall stability. Thus, the FSA OS-99 CSI is the perfect connector between the fork and handlebars, and that for professionals and amateurs alike!