Ritchey 4-Axis Matrix 84/96-Dgree Stem, Carbon, 110mm Taper head Titanium bolts 3D-Net forged from 214 aluminum Contoured faceplate with four closely spaced bolts distributes flex and stress across a large clamping area, providing security while reducing risk of damaging lightweight carbon handlebars Carbon wrapped stem body and cap significantly increases strength and durability with minimal weight penalty