The mucky nutz gut fender front mudguard 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 it weighs in at just 30g so you39ll not know it39s there when you39re throwing the bike around mucky nutz gut fender front mudguard features it protects you waist upwards against mud and rainwater thrown from your front whe