Features1High Performance: Made of high quality aluminum alloy material, providing a more sensitive and safer braking experience. 2Size Description: The front tubing length is about 900mm/35.4in, and the rear tubing length is about 1680mm/66.1in. 3Stereo Oil Cylinder: Stereo oil cylinder can reduce maintenance times with high performance, also has the ablity to bring lightweight effect. 4Instant Braking: Stopping your bike immediately with the squeeze of finger. Ultra powerful brake effect can improve your using experience. 5Easy to Use: Manufactured with accurate shape and size, has a close fitting for installation, simple for installation and removal.SpecificationItem Type: Bike Hydraulic Brake KitMaterial: Aluminium AlloyColor: As Picture ShownApplication: For FoldingElectricBikeProduct Size: A Column: Approx.75mmB Column: 51mm(Universal For Front Fork And Frame)Oil Tube: Front Wheel: Length: Approx.900mmRear Wheel: Length: Approx.1680mmOil Cylinder: Stereo Oil Cylinder (Gently Pinch To Brake)Weight: Approx.1123g/39.6ozPackage List1 x Pair of Brake Levers1 x Pair of Disc1 x A Column1 x B Column12 x Small Screw8 x Big Screw4 x Accessories