[Fork stem extension] Can freely adjust the joint to fit your own height, the maximum height extension is 100mm. [Stable material] The riser stem is made of aluminum alloy. It is safer to use and corrosion resistant and rustproof, high toughness and not deformed. [Easy Installation] Simply connect the bicycle handlebar extension to the original front fork stem to complete installation. [Widely Compatible] Don't worry about buying a handlebar adapter that doesn't fit your bike, our fork stem extender is suitable for most mountain bikes, mountain bikes, road bikes, etc. [Package] Package list: 1 * bicycle stem extender. Product Description Description This bicycle fork stem extender is a useful tool to lift the header handlebar of your beloved bicycle to help hold the traction on the steep slope and give you a pleasant and relaxed cycling experience without bending the weak body too much. Specifications: Material: Aluminum Alloy Color: Black Riser Diameter Handlebar: Standard (1-1/8 in. uce) Number of spacer rings: 4 pcs Increased height: 100mm Color: black Weight: 190g Compatible models: most mountain bikes, mountain bikes, road bikes, etc. Installation: 1. Remove the original bicycle handlebar cover, remove the handlebar bracket; 2. Install our bicycle fork stem extender and adjust the position; 3. Fix the adjustment screw, increase the spacers according to the height you need; 4. Install the handlebar bracket and fix the screws on the bracket; 5. Install the bicycle fork stem extension cover; 6. Done.