Using this AS3 aluminium skid plate is easy. Just follow the included fitting instructions and use the provided bolts and brackets to attach it to your KTM 250 Duke (2015 - 2016) or KTM 390 Duke (2013 - 2017). Before installation, make sure your bike is in its OEM form as optional extras or aftermarket parts might cause fitment problems. If you're not sure, it's best to contact us. When it comes to maintenance, simply clean it with a mild soap and water solution. The 4mm thick aluminium is strong, but try to avoid hitting it hard against large rocks or other heavy objects. With a 12 - month warranty, you can ride with peace of mind, knowing that if there are any issues, we've got you covered.