Description Specification: Material:aluminum alloy Size:siutable for 12/14/16/20/26 inch bicycle Electric bike SM Plug legnth of the housing: 82cm (front) /155cm(rear) model: XD-E300 oil pressure name: hydraulic oil brake color: black material: 6061 high strength aluminum alloy fit size: 12 inch/14 inch/16 inch/20 inch/24 inch/26 inch brake handle length: 115cm suitable for braking direction: Left rear, right front tubing length: front 82cm/rear 155cm suitable for disc brake type: Aperture 44MM, diameter 140MM or 160MM Note: The frame must have disc brake holes, and the motor must have threads or disc brake holes Feature: 1. Double-sided return piston, no brake 2. Using international standard mineral brake oil, the brakes are flexible, the hand feels comfortable, and the brakes have no abnormal sound. 3. Effective service life of more than 300,000 times 4. Integrated / split type of installation 5. Complete independent intellectual property rights, certified by the National Bicycle Testing Center Note: Friendly Tips: Photo color might be a little different from the actual product due to color display of different monitors. Packing Included: 1 pairs eBike Hydraulic Disc Front & Rear Oil Brake Aluminium Alloy Braking