B124 Bicycle Adjustable Stem, 31.8mm, 25.4mm, Mountain Bike Stem

Made from light, stiff, and durable 3D-forged, CNC-machined alloy Steerer Tube Diameter: 28.6mm , Standard for 1. 18" forks Bar Bore Clamp Diameter: 31.8mm or 25.4mm Adjustable angle (±60°)：Adjust upward: Raise handlebar position. Make you bend less while riding, riding comfort and steering control. Adjust downward: Low down handlebar position, reduce wind resitance, ride faster Fits road bike and mountain bike, and other bike SpecificationsColor:BlackMaterial:aluminum alloy.Steerer Tube Diameter:28.6mmStandard for 1.18" forksBar Bore Clamp Diameter:31.8mm;25.4mmCenter Distance:110mmStem Angle:+/-40 degree adjustable4 x Screws(safety system)Four stainless steel screws to fix the handlebarTwo stainless steel screws to fix the stems on the steerer tube of your bikePackage content:1pc adjustable stem   Adjustable angle (±60°) Adjust upward: Raise handlebar position. Make you bend less while riding, riding comfort and steering control. Adjust downward: Low down handlebar position, r