Product Details:Built from 3D forged 6061 aluminum. Forged is significantly stronger than cast methods of building but requires less material, resulting in a stiffer and lighter stem,Faceplate is also constructed from 6061 aluminium, with a strength comparable to steel,Easily flips to give a 5° rise or drop depending on your riding style,Because correct stem length is vital for comfortable bike position and good handling, the One Stem comes in various sizes,Fits 28.6mm steerers and 31.8mm bar clamps,Weighs just 121g (90mm)Key Features:,Made for road racing, sportive riding, mountain biking and cyclocross,Material: 3D forged AL6061,Bolts: SCM-435,Angle: +/- 5º,Clamp Diameter: 31.8mm,Steerer Clamp: 28.6mm,Stack Height: 40mm,Weight: 121g (90mm),Face Plate: AL6061,Finish: Sandblasted anodized black,.Reliability: Controltech USA knows the combination of sound engineering and high-quality materials practically guarantees the lifelong performance you expect. They never compromise our designs at the expense of low-quality materials. They use only premium grade raw material of aerospace quality.Ingenuity: Controltech is, and always has been, a global leader in component design. The state-of-the-art manufacturing technology would be nothing without the cutting-edge innovation of our Global Research & Development Team.Quality: A precise, unflinching view of manufacturing tolerances and meticulous craftsmanship are the hallmarks of Controltech components. Craftsman-level alloy welding and carbon layup are hallmarks of our designs. Plus of course, the use only premium-grade raw materials in the first place.Value: Though the greatest innovation takes place on the cutting edge of material science, manufacturing processes and product design, there’s such a thing as ’trickle down.’ Today’s no-expense-spared prototype is tomorrow’s easily-obtained standard. ControlTech work hard to create a range that covers every riding style, every rider and every budget – without ever sacrificing class-leading performance.