On the surface, a stem may look simple, but under that beautiful veneer lies hours of 3D modelling, countless FEA revisions, and tons of real-world ride testing. And all of this to make sure we have a light, stiff stem that can handle tremendous forces from every conceivable angle.The right sized stem helps make the difference for your riding style, shorter stems means more maneuverability and a more playful ride. Thankfully ProTaper makes a multitude of sizes in one effective and proven design.Features: 31.8mm Clamp Diameter Weight 175g Hardware Torx, A2 Stainless Material 3D Forged and Machined 6061 Alloy Length 35mm - 50mm