The Tusk Nyloc Axle Nut is the perfect replacement for motorcycles with a non-locking axle nut. Constructed from a 6061 billet aluminum for light weight and a nylon insert for the locking mechanism. Each nut is anodized for corrosion resistance and to give your bike that factory look. Ensure your axle nut doesn't vibrate loose with the Tusk Nyloc Axle Nut.