Using your AS3 Performance rear brake disc is straightforward. Just install it on your 2000 - 2022 KTM 65 SX as you would with a regular brake disc. For the best braking performance, we suggest using AS3 Performance brake pads. When it comes to maintenance, keep an eye on the ventilation slots. Make sure they're free from dirt and debris. You can clean them gently with a soft brush. Also, check the disc regularly for any signs of excessive wear. If you notice any problems, don't hesitate to contact us. Remember, the brake disc comes with a 12 - month warranty, so you're covered for a while. Enjoy a smooth and reliable braking experience with your AS3 brake disc.