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 terrainsAccurate Fit and Compatibility: 31.8mm to fit handlebars with a diameter of handlebar tubes of 28.6mm (1-1 or 8 inches), ensuring a secure and accurate connection for optimal control during your ridesHollow Out Design: The innovative full hollow design not only reduces weight but also enhances the aesthetic appeal of your bike, providing both functionality and style in the sleek packageEnhanced Riding Experience: Engineered to improve handling and stability, this stem is great for downhill biking enthusiasts seeking improved responsiveness and control on challenging trailsEasy 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: Length: 3.5cm or 1.38inch Package Includes: 1Mountain Bike Stem Note: Please allow slightly errors 1-2cm differences due to manual measurement.