The innovation of material in a powerful design. The most adavanced technology of light alloy tempered by tough experience with the great cycling champions. 3D forged road stem, stress directional fiber orientation. Titanium 6/4 hardware. Extension: 90-100-110-120-130 mm Handlebar O.D.: 31,7 mm (Newton standard) Fork steerer O.D.: 28,6 mm (1’1/8) Extension angle: 82° Collar stack height: 40 mm Tightening torque: for all bolts, 8 Nm (5,9 ft.-lbs)(71in-lb) Weigth (120 mm size): 107 grams