GONOVO 22.2mm Road Folding Bikes Mountain Bike Bike Extension Stem Threadless Stem Bicycle Fork Stem Bike Quill Stem Converter Bike Stem Extender Raise Bar Components Bicycle Stem Riser Adapter

Base Diameter(Upper diameter): 1 1/8'' (28.6mm) Length: 160mm/6.3 inch Material: Iron/Metal Package Includes:1 Pc Bike Quill Stem AdapterType:Bike Quill Stem Adapter Color: Silver,Black Steerer tube diameter:22.2mm/25.4mm Weight: about 155/180 grams This premium quill stem adapter riser made of high quality Metal, solid, high strength but lightweight Raises the height of your handlebars by increasing the height of your stem. Apply to 25.4mm to 28.6mm and 22.2mm to 28.6mm Front Fork Head Tube Converts mountain bicycle/ folding threadedless quill setup to threadless. Easy installing, operation and flexible