A Butt Fender for road bikes. In most ways it is the same as the standard Butt Fender, with the main differences being it's narrower, designed for the thinner rubber, which means it can stored under the saddle when not in use. Mucky Nutz Road/CX Butt Fender Features Prevents 'soggy arse syndrome'. Fitted as close as possible to back face for optimum muck catching. Prevents the top of your seat post from getting clogged up. Discrete but very effective. Possibly the lightest rear mudguard, at just 15g. No need for separate fasteners, making it easy to fit and take off. Compatible with all standard double steel rail saddles, so long as they don't have any daft bits hanging off the rear. See image. When not in use, you can store under the saddle or take off. Simples! Easy to clean as it's flexible and opens flat. Simply wipe it and you're done.