The Road Stem is pure lightweight elegance: it's extremely rigid and super-sturdy. It manages to offer a harmonious carbon design without sacrificing any stiffness. This is partly due to the painstaking handcrafting that goes into every stem. You’ll always be right on track and a step ahead of your competitors! Note:The Road Stem length up to 100 mm is considered category 3 “XC | Hard Gravel”. From a length of 110 mm, the Road Stem is category 2 “Light Gravel”. Material Carbon | Aluminium | Titanium Range of Use Road | Gravel | XC Clamp Diameter Bar 31.8 mm Clamp Diameter Shaft 1 1/8 Zoll Stack Height 40 mm Length 90 mm | 100 mm | 110 mm | 120 mm | 130 mm Angle +/- 6° Construction Type Ahead Weight UD-Finish: 132 g | 135 g | 137 g | 143 g | 149 gSQ-Finish: 134 g | 137 g | 145 g | 152 g | 159 gcolor: +2 g Weight Tolerance 5% Weight Limit none Colors black | red | blue