The plastic HDPE plastic skid plate is designed for motocross, supercross and classic enduro use Made from 6 mm thick polyethylene, it covers the underside of the frame, protects the lower engine and crankcases from projections Unlike aluminum, HDPE absorbs impacts, does not undergo deformation, does not generate vibrations and is 40% lighter. 6MM SKIDPLATE GAS MC450-EX450F