Features: Installed on the 25.4mm handlebars can installed 31.8mm stand, installed on the 31.8mm stand can installed 25.4mm handlebars. Elevates your cycling experience with our aluminum Handlebars Shims adapter, designs for simple and enhances bike performances. Produced from high strength aluminum , this adapter is both Portable and , ensuring a reliable fit and long service use on all your ride. Suitable for cycling enthusiasts and professional bikers alike, this adapter caters to those look to upgrades their handlebars for a biking setups. Whether you're tackling mountain trail or cruising through city landscapes, this Handlebars Shims adapter provide the versatilities need for any cycling scenario. Installation is a blow with this Precisions engineered adapter, making it a must get accessory for anyone look to optimizes their bike's handling and control. Specifications: Component: aluminum Length: about 44mm/1.73inch External diameter: about 31.8mm/1.25inch Internal diameter: about 25.4mm/1in Package Includes: 1xBike Handlebars Adapter note: Please allow 1 to 3cm error due to manual measurement, please sure you not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.