Full carbon fiber body for unrivaled beauty and stiffness, the Vision Metron Carbon Stem perfectly blends elegance and aerodynamics. Description Carbon Fiber Stem developed with Computational Fluid Dynamics (CFD) technology to creates the ultimate low drag profile. The UD carbon fiber not only reduces the weight, it's incredibly strong and stiff to ensure you’re most intense sprinting and climbing efforts are optimized. A glossy UD carbon finish ensures this stem will enhance the look of even the most modern aero road bikes. Now updated with the new ACR System, a fully integrated Aerodynamic Cable Routing solution that routes all cables, wires, and hoses internally. Features Suitable to ACR frames Monocoque Carbon Body Alloy faceplate Titanium hardware Ø31.8mm handlebar clamp diameter 35mm fork clamp stack height UD carbon finish WEIGHT 256 grams (100mm)