Using these AS3 Performance radiator braces is easy. First, make sure your bike is a 2021 - 2024 Rieju MR 250 or 300 model and has the OEM radiator fan kit installed. Then, follow the included fitting instructions and use the provided bolts to attach the braces to your bike. When riding, these braces will protect your radiators from damage. As for maintenance, simply clean them regularly with a soft cloth and mild cleaner. If you notice any damage, contact the UK company for support as they offer a 12 - month warranty. And remember, the parts are in stock, so if you need a replacement, it can be dispatched right away.