The XLC A-Head Stem ST-M15 is an elegant and versatile stem, suitable for both road and mountain biking disciplines. The 3D forged aluminium adequately supports load-bearing handlebars, and the A-head system strengthens the setup of your cockpit, as the stem is secured to the outside of the steering tube. The product comes in two different diameters both of which are for 1 1/8 forks and five different