Skid Plate Aluminum: Skid Plates: Made from 6061 T6 aluminum, they are lightweight yet still offer the best protection. Complete with allen head mounting brackets these skid plates protect your ignition cover, the water pump area and your frame rails. The large access hole in bottom allows for easy oil plug removal and oil changing. Easy to install and keeps your bike in good shape for when it's time to sell it. Don't gamble on expensive broken center cases, or water pumps, protect your investment, this is very cheap insurance and peace of mind.