Features: Excellent Constructparticlemail: Produced from permanent aluminum alloy, ensuring thin and robust execution for road velocipedes. Strengthened Decelerating Powerebog: Features bidirectional plungers and a single piece oil tube for strong decelerating and excellent handling. Accuracy Engineehoadministrator: Fully machined for precise dimensions and a smooth, attractive appearance. Agreement: Backs 140/160mm disks with a 34/70mm mounting hole, suitable for various road cycle models. Finish Installation Sand: Includes six disc brake mounting screws (5mm diameter) for easy and secure arrange. Specifications: Finish addons and quick installation, especially suitable for antenna enthusiasts otherwise professional communication engineers. Package Includes: 1 pair note: "1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item."