The PRO Vibe Stem is designed to align your cockpit perfectly with your bike for an optimal riding position. Supreme stiffness offers you more control during those high-speed descents or maneuvers. So align yourself with performance.Ultimate integration with Shimano Di2 to give you maximum aerodynamic performance and ultra-clean styling. With the specially positioned cable ports you can internally route the Shimano Di2 cables.- Lightweight and stiff carbon stem- Aerodynamicly optimized design- Evolved puzzle clamping system- Di2 compatibleSPECS:- Length: 130mm- Handlebar diameter: 31.8mm- Steerer diameter: 1 1/8in (28.6mm)- Angle: +/- 8°- Material: Carbon- Weight: 120g (80mm / topcap excluded)- Color: Black