Description: 【High Performance】: Center lock brake disc rotor can meet the braking needs of different mountain bikes and road bikes, ensuring the best braking effect and riding safe 【Premium Material】: Center Lock disc rotor is made of quality stainless steel and aluminum alloy materials, with wear resistance, and can maintain stable braking performance for a long time 【Center Lock Structure Design】: The center lock disc structure design allows the brake pad to be evenly stressed, extending its lifespan. The disc is not easily deformed and can be installed and removed quickly 【BB01 Installation Wrench Equipped】: Bike disc brake rotor comes with a BB01 special installation wrench, making the installation and removal of the disc brake pads easier and faster 【Wide Application】: The lock disc brake disc and accessories are suitable for various brands and models of mountain bikes and road bikes, with wide applicability and compatibility Specification: Material: Stainless Steel, Aluminum Alloy   Package Includes: 1 Disc 1 Wrench 1 External Lock Cover Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.