Fox 36/38 Mud Guard XL - The Lost Co. - Fox Racing Shox - 803-01-751 - 821973426471 - -
Fox 36/38 Mud Guard XL - The Lost Co. - Fox Racing Shox - 803-01-751 - 821973426471 - -
Fox 36/38 Mud Guard XL - The Lost Co. - Fox Racing Shox - 803-01-751 - 821973426471 - -
Fox 36/38 Mud Guard XL - The Lost Co. - Fox Racing Shox - 803-01-751 - 821973426471 - -
Fox 36/38 Mud Guard XL - The Lost Co. - Fox Racing Shox - 803-01-751 - 821973426471 - -

Fox 36/38 Mud Guard XL

Regular price
¥4,100
Sale price
¥4,100
Quantity must be 1 or more
In Stock, Ready to Ship!
803-01-751
Ships within USA only

Pickup Available in our Bellingham, WA shop Store Info

  • The Lost Co

    Pickup Available, usually ready in 24 hours

    2106 Pacific Street
    Ste 102
    Bellingham WA 98229
    United States

    +1 (360) 306-8827


Maximum coverage has arrived.

The new Fox Mudguard XL for 36 & 38 forks has an 85% increase in coverage over the short Fox mudguard, and uses the same clean mounting method as the original to eliminate the need for zip ties.

  • Compatible with 2021+ Fox 36 & 38 forks
  • Max tire clearance 29x2.5/27.5x2.7
  • Includes mounting bolts

*THIS MUD GUARD ONLY FITS 2021 OR NEWER FORKS. DOES NOT FIT PREVIOUS MODEL YEARS*

MPN: 803-01-751
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UPC:821973426471
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Fox factory xl mud guard front view
fox factory xl mud guard side view

Fox Mud Guard XL FAQ

Which models of Fox forks is this fender compatible with?

This model of Fox Mud Guard is compatible with all models of 2021 and newer Fox 36 and Fox 38 forks. It is not compatible with any models of the Fox 36 Rhythm. This is also absolutely not compatible with 2020 or older models of Fox 36, and there are no possible ways to adapt it to work.

How do I install this fender on my Fox 36 or 38?

This fender requires that you remove your lower leg pressure relief bleeder valves, or plug bolts for Performance Series forks, because 2 of the fender mounts are placed underneath them.

  • For Factory or Performance Elite forks, remove your valves with a 13mm socket. For Performance Series forks, remove your plugs with a 5mm allen wrench.
  • Next, completely remove the spacer underneath the valve (or plug bolt) so that the fender can replace where the spacer was. You will then reinstall everything and torque the valve/plug bolt to 45 in-lb (5.0 Nm).
  • Finally, thread the (2) included small screws through the fender's upper mounting holes and into the fork's arch using a 2.5mm allen wrench. Tighten to 4.5 in-lb (0.5 Nm).

***Be sure to perform this installation with the fork positioned either face down or upright. If you attempt to remove the valves/plugs with the fork upside down or tilted upward, you wil lose oil from your fork's lower legs.***

You can find full installation instructions from Fox here: 2021 36mm and 38mm Mud Guard Installation

Does Fox make a smaller fender? The XL model looks like it may be more than I need. 

Yes, Fox also makes the Fox 36/38 Mud Guard which is a smaller, less bulky fender. We recommend the XL model for the most wet and muddy riding environments, or the standard size for areas that don't receive tons of rain.


fox 36 38 mud guard bolt on fender 803-01-751 821973426471