Using this front brake disc guard is easy. First, replace the front wheel spacer on your 2004 - 2022 Suzuki DRZ 400 S with the mounting bracket that comes with the guard. Then, attach the guard to the bracket. It's a simple process that you can do on your own. When riding, keep in mind that this guard is designed to protect your brake disc from rocks and debris, but it's not indestructible. Avoid extremely rough terrains that could cause excessive damage. For maintenance, regularly check the mounting bracket and the guard for any signs of wear or looseness. Clean the guard with a mild soap and water solution to keep it looking good and functioning well. If you notice any significant damage, you can easily replace the guard as replacement parts are available.