Description: 【Sturdy Aluminum Alloy Construction】: Crafted from quality aluminum alloy, this mountain bike handlebar stem offers exceptional strength and durability while maintaining a lightweight profile for enhanced performance on rugged terrains 【Accurate Fit and Compatibility】: Fork diameter: 28.6mm/1.13inch, handlebar diameter: 31.8mm/1.25inch, ensuring a secure and accurate connection for optimal control during your rides 【Hollow Out Design】: The innovative full hollow design not only reduces weight but also enhances the aesthetic appeal of your bike, providing both functionality and in the sleek package 【Enhanced Riding Experience】: Engineered to improve handling and stability, this stem is great for downhill biking enthusiasts seeking improved responsiveness and control on challenging trails 【Easy Installation】: With its user friendly design, this handlebar stem can be easily installed or adjusted using standard tools, making it an ideal choice for both professional cyclists and DIY enthusiasts looking to upgrade their mountain bikes effortlessly Specification: Material: Aluminum Alloy   Size Chart: Center Distance: 3.3cm/1.30inch Fork Diameter: 28.6mm/1.13inch Handlebar Diameter: 31.8mm/1.25inch Package Includes: 1 Mountain Bike Stem Note: Please allow slightly errors 1-2cm differences due to manual measurement.