[Material] The bicycle stem is made of 6061 aluminum alloy, which is light in weight, high in strength, corrosion resistant and will not deform [Adjustable angle] The bicycle stem angle can be adjusted between 0-60 degrees, allowing you to choose the right angle according to your personal needs, and riding more comfortable [Easy installation] Just connect the original front fork rod, adjust the angle and tighten all bolts to firmly fix the rod [Application] Bicycle stems are suitable for most road bikes, fixed gear bikes, mountain bikes, etc. Product Specipication Adjustable Handlebar Stem Light weight, better toughness, no deformation, corrosion resistance. Includes assembly tools for quick and easy installation. The adjustable range is 0-60 degrees. Package includes 2 x Allen key 2 washers (If the height of the valve stem is not enough during installation, a washer can be added.) Specifications Material: Aluminum Alloy 6061 Color: black Fork rod diameter: 28.6mm (1-1/8") Adjustable angle: -60/+60 Durable and lightweight Anti-corrosion and anti-oxidation Easy to install Suitable for most bicycles Installation steps 1. Loosen the front fork bolts with a 5 mm Allen key, slide the replacement rod onto the steering gear, 2. Then tighten the bolts. 3. Use a 6mm hexagon wrench to loosen the expansion bolt and adjust the position of the valve stem, and then re-tighten the bolt. 4. Center the rod in the rod clamp, set it to an angle you like, and then reinstall the panel. 5. Tighten each bolt on the panel to complete the installation. Notes Please confirm the size of your bicycle stem and handlebar before purchasing. Please make sure the installation is stable before riding.