Mountain Bike Stem Riser, Bicycle Handlebar Stem, And Cysky, And Bmx Biking. ? ?Important Note? Please confirm the diameter of your handlebar before order to avoid purchasing the wrong size. If you are not sure about the size, please contact us for help. ??Specification? Handlebar diameter: 25.4mm (1") Front fork diameter: 28.6mm (1-1/8") (Standard) Degree: 0~90 degree adjustable Length: 60mm/ 80mm/ 100mm?center distance of the two holes? Weight:265g/ 275g/ 300g Material: High intensity Aluminum alloy AL6061 T6 Package Include: 1 x adjustable bike stem Easy Installation: Just connect up the original front fork stem Handlebar diameter 25.4mm (1"), Front fork stem diameter 28.6mm (1-1/8") Adjustable angle: 0~90 degree adjustable, Length: 100mm (center distance of the two holes), , Weight: 300g (0.66lb) Bike handlebar stem constructed of precision 3D Forged aluminum alloy, CNC process no paint loss, easy to clean, sturdy and durable, not easy to deform and rust Suitable for most road bikes, mountain bikes, downhill bikes, track bikes, MTB, BMX, DH and so on. Perfect for modifying, DIY and upgrading your bike. Good replacement for your mountain bike Package Include: 1x Adjustable Bike Stem