Prevents frame stretching and engine case breakage on models where the engine is a stressed member and built-in skid plate protects the cases from rocks. Anodized aluminum. Detailed Specifications: Protects engine and helps prevent frame stretching and breakage. A must-have for any CRF80 / 100F owner. Tig welded 6061 aluminum. Tough powder coated finish. Hardware included. Bolts on in minutes.