CUNXIN Durable Road Folding Bikes Bicycle Fork Stem Mountain Bike Threadless Stem Bike Extension Stem Bike Stem Extender Raise Bar Components Bike Quill Stem Converter Bicycle Stem Riser Adapter

Weight: about 155/180 grams Base Diameter(Upper diameter): 1 1/8'' (28.6mm) Material: Iron/Metal Steerer tube diameter:22.2mm/25.4mm Package Includes:1 Pc Bike Quill Stem AdapterLength: 160mm/6.3 inch Type:Bike Quill Stem Adapter Color: Silver,Black 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