Fox Racing Shox Fork 40 Mudguard - 803-01-471

The Fox Racing Shox mudguard is designed to bolt on to the Fox 40 forks. This mud guard is designe...

Best current price£27.99from Tredz

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TredzFox Racing Shox Black Long Mudguard Fender 2021 - 2026 Size 40
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Merlin CyclesFox Black Fork 40 Mudguard
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Product Information

Full details

The Fox Racing Shox 40 Mudguard (803-01-471) is an essential accessory for downhill mountain bikers using 2021 or newer Fox 40 suspension forks who want to maintain clear visibility in muddy or wet conditions. By bolting directly to the fork chassis, it offers a secure and rattle-free barrier against trail debris and roost, though it is specifically engineered for a narrow range of fork models and is not compatible with older Fox 40 iterations or other fork brands.

All features

Model Part Number803-01-471
BrandFox Racing Shox

Extended Product Information

FAQs

Will this fit my Fox 38 fork?

No, this mudguard is exclusively designed for the Fox 40 downhill fork.

Can I use zip ties to mount this?

No, this model is designed specifically for a 4-point bolt-on mounting system.

Does it come with the necessary bolts?

Yes, the product is intended to use the standard bolt-on hardware compatible with the 2021+ Fox 40 arch.

How do I know if my Fox 40 is a 2021 model?

You can check the serial number on the Fox website or look for the 4-point mounting holes on the back of the fork arch.

Is the material flexible?

The guard is made of a high-impact, rigid material designed to hold its shape during high-speed riding.

Troubleshooting

Guard is vibrating or rattling

Check that all 4 mounting bolts are tightened to the manufacturer's torque specification.

Guard does not align with fork holes

Verify that your fork is a 2021 or newer Fox 40 model. Older forks do not have the necessary mounting points.

Pros and Cons

Pros

  • Extremely secure 4-point mounting system prevents rattling
  • Provides excellent facial protection from mud and debris
  • Tailored aesthetic that matches the Fox 40 fork architecture
  • Simple, tool-based installation ensures it stays put on rough terrain

Cons

  • Not compatible with pre-2021 Fox 40 forks
  • Does not fit other fork brands or Fox models like the 36 or 38
  • Requires tools to remove or install compared to zip-tie alternatives

Setup, Compatibility & Care

Setup

  1. Align the four mounting holes on the mudguard with the corresponding threaded inserts on the back of the Fox 40 fork arch.
  2. Use the provided bolts (or the standard M3/M4 hardware specified by Fox) to secure the guard.
  3. Ensure each bolt is tightened to the recommended torque spec to prevent vibration, but do not overtighten to avoid damaging the threads in the fork arch.

Compatibility

This guard (803-01-471) is strictly for 2021+ Fox 40 forks. It will not work on older 26-inch or 27.5-inch Fox 40 forks that lack the 4-point mounting holes.

Care

Clean the guard after each ride to prevent dirt buildup. Since it is bolted on, it can be wiped down with a damp cloth or sprayed with water. Periodically check the mounting bolts for any signs of loosening due to trail vibration.

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