Using this AS3 front brake disc guard is easy. First, remove the front wheel spacer of your Kawasaki KLX 125 (2010 - 2016) or KLX 150 (2009 - 2016). Then, attach the guard in its place. Make sure it's securely fastened so it can effectively protect your brake disc from rocks and debris. When it comes to maintenance, just give it a regular clean with mild soap and water. Check the mounting bracket and vents occasionally to ensure they're in good condition. If the guard gets damaged, replacement guards are available. And remember, since it's made of plastic, avoid using harsh chemicals or abrasive materials that could scratch or damage it.