The Chester 35 Direct Mount stem is a practical 2-piece design with big bold graphics and that legendary bomb-proof Race Face toughness baked right in. - The Chester 35 direct mount stem is an all new 2 piece direct mount design - Forged and machined from 6061 aluminum - Weight saving single bolt faceplate - Four bolt bar clamp holds bar securely in position. - Interlocking U-Shaped Handlebar Clamp Geometry transferring more load through the stem body and not the bolts - Faceplate eliminates 'stress risers' which can cause your bar to bend or break