Motorcycle Handlebar Clamp CNC Aluminum Alloy Bar Clamps 1 1/8" 28mm HandleBar Riser "Comfort & Safety Appropriate rise handle bar height can greatly increase driving comfort and effectively reduce fatigue during long driving. fix your handlebars to help you maintain a comfortable ride." Not easy to fall off, and safer riding,Very flexible and convenient. The bike stem riser is made of high-quality alloy, with high hardness, good rust and corrosion resistance, can be used for a long time. The light texture reduces the burden of riding for you.