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🚴♂️ Stay dry, ride fly—ditch the drip with Mucky Nutz!
The Mucky Nutz Butt Fender is a minimalist, ultra-lightweight rear mudguard designed to prevent mud and rainwater from soaking your lower back and saddle area. Weighing only 19 grams, it attaches easily to standard double rail saddles without additional fasteners, offering effective protection against soggy arse syndrome for longer, more comfortable rides.







| Item Package Dimensions L x W x H | 13.32 x 6.58 x 0.16 inches |
| Package Weight | 0.03 Kilograms |
| Item Dimensions LxWxH | 12.99 x 5.12 x 0.04 inches |
| Item Weight | 22.68 g |
| Brand Name | Mucky Nutz |
| Color | Black |
| Suggested Users | mens |
| Number of Items | 1 |
| Manufacturer | Mucky Nutz |
| Part Number | MN0028 |
| Model Year | 2015 |
| Style | Minimalist |
| Size | 46 cm |
J**M
Easy install
Easy install though instructions were lacking. Found a youtube video on installation and yes, super easy.
M**S
I only install it when I need it - definitely helps
This, obviously, is a fairly minimal and lightweight solution. I don't expect miracles from it, I just expect less water and mud on my butt and back, and this delivers. I would use something larger if you are leaving it on the bike full-time but this is a great solution to clip on and off. Eventually it'll probably fatigue the plastic but it hasn't happened to me yet.
S**E
Keep Your Backside Clean
Very easy to install, just slide the little “wings” under your saddle & through the saddle rails. I do have a seat post/saddle mounted bag that may help keep the fender in place. While this does not keep my saddle bag dry, it does keep my @$$ dry & mud free. I have not experienced any issue w/the fender coming off while mounting/dismounting as other reviewers have posted. While driving on the highways at 65mph w/my bike on the rack at the rear of my car, the fender bends & curls a lot, but I have not lost it yet. If I did not have the saddle bag mount on the saddle rails, I would remove the fender while my bike was on the rack. I would recommend this fender but would also say, if you have a friend w/this or similar fender, you could “look” at the shape & DIY one w/a plastic jug/bottle for a lot less. There is not a lot to this other than a die cut sheet of plastic.
R**L
Nice design, works well and stayes put for the ...
Nice design, works well and stayes put for the most part. My issue was I kept knocking it off when I would swing my leg over the seat while dismounting the bike. Almost lost it once while crossing a creek.
E**A
Keeps the mud from soaking your shorts
This fender does not keep your back completely clean but does an excellent job of keeping the mud off your shorts and seat. I would recommend this during the winter months or after a rainy spell.
S**S
Mucky Nutz is worth the money
Easy to install and very reliable
I**R
Buy one. Your ass will thank you.
My first experience with this product: I threw on some light colored clothes and went for a quick 13-mile ride on my commuter bike right after a monsoon storm. Speeds averaged 15-20mph, and I deliberately slammed through mud and puddles in the bike lane as often as I could. When I got home, my shorts were pretty much pristine, and I had just a few little spots on my back. Very impressed. I'll definitely be buying more and telling my friends.
R**0
Cool idea but useless for mountain biking
I had high hopes but well… I can officially said that it is useless on a bike with a dropper post. Not entirely sure where it falls short since I dont have eyes in the back of my head, but at all post heights, I get sprayed. Also should mention that this is on a 29in wheel so maybe thats the reason???
C**L
Mucky less
Fit great and work great, doesn't keep you completely clean and dry but these do catch a lot and certainly do help. I love them for the size and light weight
武**郎
予想してたよりも( ・∀・)イイ!!
最初は商品紹介画像があまりなかったのでどのくらいのサイズ感かわからず購入に戸惑いましたが、結果買って正解でした。雨の日の後輪からの跳ね返りもほぼシャットアウトしてくれて予想よりも良い働きをしてくれています。ただし、跳ね返りの水量が多い場合は完全にシャットアウトすることができませんでした。なので水たまりなどには入らない限りは実用に耐えます。 取り付けの時に説明書がなかったのでちょっと手間取りました。自分の使っているサドルだと簡単に取り付け/取り外ししにくそうだったのでつけっぱなしにしていますが、そんなに邪魔にはなってない(私見です)と感じます。
U**7
Salpicadera ligera, resistente al clima y al uso diario, muy alta calidad
Guardabarros muy util y ligero, cubre bastante bien y se acopla a los rieles del asiento, de plastico muy muy duradero para traerlo bajo el sol y la lluvia por meses, no se dobla ni pierde su forma, trae letras de colores que no se caen con el tiempo, recomendado si buscas salpicadera practica y ligera, tengo dos una en una mtb Rodada 26 y otra en Rodada 29, cubren muy bien aunque el precio es algo elevado pero vale la pena por la gran calidad del material
L**A
As described
Easy install, feels sturdy!
A**L
Passt wohl an jeden Sattel ...
Ich konnte Fender nicht so ganz nach Anleitung anbauen, da ich einen dem MTB Sattel von SQLab mit der activity Ausstattung fahre, dennoch konnte ich ihn ohne Probleme montieren und die erste Testfahrt hat er perfekt überstanden ... klappt also.
Trustpilot
3 days ago
2 days ago