Bicycle handlebar stem made of high-quality 3D aluminum alloy, sturdy and durable, resistant to deformation and rust. Matte black finish for easy cleaning. Suitable for most mountain bikes, road bikes, and fixed-gear bicycles. Upgrade your bike for a more comfortable riding experience. The bicycle stem is easy to install—simply connect the stem to the front fork steerer tube. Four-bolt bar clamp securely holds the handlebar in place. Increased friction between the stem and handlebar helps reduce vibration and improve control during riding. High wear resistance and excellent durability. Size: 31.8 x 35mm Material: 6061 T6 aluminum alloy Color: Black Package Contents: 1 x Bike Stem Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3cm.