Adjustable Bike Stem Riser, Fork Stem Extender, Handlebar Raiser Headup Adapter, 28.6mm, Mountain Bike Road Bike BMX MTB

Made of high-quality aluminum alloy, surface is anodized, strong and wear-resistant, not easy to rust. Maximum extension height: 122mm/4.8in, including 4 gaskets: 1x20mm, 2x10mm and 1x5mm, you can freely adjust height. It helps you lift handlebars for a nice riding position, reducing pressure on your back, neck and wrists for a more comfortable ride. More flexible handing, lightweight, and operation is comfortable. Easy to install and use, fits 28.6mm(1-1/8 inch) diameter fork stems.