Ritchey WCS trail stem 3D forged alloy 2014 for superior strength and lightness 220 degree extra wide bar clamp improves stiffness and fits most riser bars Product Features Use MTB Steerer 1-1 / 8 "Handlebar Clamp 31 , 8 mm Angle 0 ° Quill height 45 mm Front panel width 40 mm