Description: 【Versatile Adjustability】: This bike stem offers adjustable angle from 0 to 23 degree, allowing you to need your handlebar position for optimal comfort and control during your rides 【Quality Construction】: Made from quality aluminum alloy, this handlebar stem is designed to withstand the rigors of mountain biking while providing long term performance 【Great Fit for Mountain Bikes】: Specifically designed as a stem riser for mountain bikes, it enhances your cycling experience by improving posture and reducing strain on long rides 【Easy Installation】: Compatible for standard 28.6mm (1-1/8") steering tubes and 31.8mm handlebars, this stem is easy to install as a replacement part or upgrade for your bike 【Essential Cycling Accessory】: Whether you're upgrading or replacing parts, this adjustable bike stem is an essential accessory that enhances both the functionality and comfort of your bicycle setup Specification: Material: Aluminum Alloy Size Chart: Suitable for Handlebar Diameter: 3.18cm/1.25inch Suitable for Front Fork Diameter: 2.86cm/1.13inch 14cmx5.2cmx4.4cm/5.51inchx2.05inchx1.73inch Center distance: 9.5cm/3.74inch Package Includes: 1 Bike Stem Note: Please allow slightly errors due to manual measurement and different monitors.