Essential For Riding: The Disc Brake Adapter Can Upgrade The V Brake To a Disc Brake, Which Is a Perfect Modification Accessory. Professional And Practical Design.Durable: Made Of High-Quality Aluminum Alloy And Steel, High Strength And Long Service Life. Installation And Disassembly Are Very Convenient, And There Is No Need To Worry About Insufficient Hands-On Ability.Net Weight: 123gColour: SilverMaterial: Aluminum alloy+steelSize: 120 x 51 x 44MMPackage Contents:1 x bike Disc Brake AdapterTips:Not All Road Bike Frames Can Be Installed. Please Confirm The Position Of The Rear Hook Of Your Frame Before Buying. Whether The Size Of The Triple-cornered Area Of The Plane Is Similar To The Size In The Picture. If There Is a Big Difference, Please Do Not Buy It To Avoid Installation Failure.Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.