Mucky Nutz 'Gut Fender'Mucky Nutz take on the down tube mud guard. New Improved Material! Now made from a customized polypropylene material which makes the fender slightly thicker, stiffer and stronger whilst keeping weight to a minimum.Available in black it weighs in at just 30g, so you'll not know it's there when you're throwing the bike around. It works great in combo with the Bender Fender, providing full-on front-end protection.