Using these AS3 Performance crash bars is easy. First, take out all the parts from the package, including the bars, brackets, and bolts. Refer to the fitting instructions that come with the product. You'll find that the brackets are designed to fit your 2021 - 2022 KTM 250 Adventure or 2020 - 2022 KTM 390 Adventure perfectly. Just follow the steps in the instructions to attach the bars to your motorcycle. When it comes to maintenance, a simple wipe with a clean cloth every now and then will keep the textured matt black finish looking great. Check the bolts regularly to make sure they are tight. Also, remember that these crash bars come with a 12 - month warranty, so if you have any issues, reach out to us. And since all parts are in stock, you can expect quick replacement if needed.