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Mucky Nutz Road/CX Butt Fender
Mucky Nutz Road/CX Butt Fender

Mucky Nutz Road/CX Butt Fender

Mfg PartNum:MN0042
Out of Stock
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Lightweight. Discreet. Effective.

The original Road and Cyclocross saddle guard - This clever rear mudguard is lightweight, discreet and requires no fasteners!


  • Improved design: thicker, stronger and re-profiled for a better fit.
  • Prevents 'soggy arse syndrome'.
  • Stops the top of your seat post from getting clogged up.
  • Discreet but very effective.
  • Weighs just 15g.
  • No fasteners required! Our simple, clever design is quick to fit and secure once in place.
  • Compatible with most standard double steel rail saddles that don't have any daft plastic moulded bits in the way.
  • Easy to clean as it's flexible and opens flat. Simply wipe it and you're done.
  • B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

    This product is NOT Eligible for VIP Points.

    Ordered by Most Relevant First
    5 stars
    4 stars
    3 stars
    2 stars
    1 stars
    Reviewed 3/1/2021
    by Anonymous
    eugene, or
    Overall Rating
    Great alternative

    Lost an asssaver, so I tried the mucky nutz, actually works better on my aliante, the little tabs on the sides allow one to punch holes in them and fasten a zip tie around your saddle rails and no more lost fender????

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    Reviewed 5/8/2020
    by Gecko Sprock
    Cycling Enthusiast
    Washougal Hills
    Value Rating
    Overall Rating
    EasyClean Install - Protects Lower Backside

    EasyClean Install - Protects Lower Backside

    Easy no-tool mounting to the underside of seat. Mainly good to protect shorts from getting wet. Good value for what is does do. Doesn't replace full fenders but what do expect for $12.

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    Reviewed 3/4/2021
    by Below average cyclist
    Cycling Enthusiast
    Austin, TX
    Overall Rating
    Cheap and easy to install

    I've used this thing about 10 times on roads that involved some road spray but never in a downpour. The first time I used it it had rained earlier that day and was decently dry out but from looking at the underside of it after the ride I appreciated all of the road grime that did not end up on my jersey. Now with that in mind, there was some road grime that did make it onto my jersey but I'd say it was cut down by about 80-90% due to this little thing. I also think it doesn't look that bad. If you're going to put a fender on a performance road bike (i have a specialized tarmac) this would be it. It actually doesn't look half bad for a fender. Don't expect it to keep you totally clean but hey, for the price I really can't complain.

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