The Tusk Quiet-Glide Adventure Skid Plate is constructed using 3/16” thick aluminum shaped to offer ultimate coverage. The aluminum is coupled with a ¼” UHMW overlay installed on the surface for absolute maximum engine and frame protection for the underside of your bike. The UHMW overlay allows your bike to glide over obstacles instead of getting hung up like aluminum. Remember Tusk for all your adventure bike needs. -It is much quieter than aluminum skid plates. -Quick removal for routine maintenance.