Using the SHIMANO Deore XT RT - MT800 disc brake rotors is straightforward. First, make sure your bike is on a stable surface. Use the appropriate tools to install the rotors according to the CENTER LOCK design. It should fit snugly. When riding, these rotors will work automatically with your brake system. For safety, always check the rotors before each ride to ensure they are properly installed. If you notice any unusual noises or vibrations during braking, stop and check the rotors for damage. To maintain them, clean the rotors regularly with a mild cleaner and a soft cloth. Avoid using harsh chemicals as they may damage the rotors. Store the rotors in a dry place when not in use to prevent rusting.