Cinelli Ram XL (31.8) Stem. The position of the carbon layers & the shape design of each section creates a high torsional stiffness. The fork & handlebar clamping areas are reinforced with aluminium inserts. The 4 bolts front cap is in forged aluminium & it's designed to perfectly clamp carbon handlebars. Clamp diameter: 31, 8 mm. Angle: 84/96 Material: Carbon with Al 6061 T6 front plate. Finish: clear coated.