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Mucky Nutz Butt Fender Review: Prevents soggy arse and keeps saddles clear

Mucky Nutz, Butt Fender, Reflective
4.7
[Improved Strength & Fit]  Thicker, stronger and re-profiled for a better, more secure saddle fit.
[Stops 'Soggy Arse']  Prevents soggy saddle and blocks seat-post clogging for cleaner rides.
[No Fasteners Needed]  Simple, clever tool-free design fits quickly and stays securely in place.
[Wide Saddle Compatibility]  Fits most standard double steel rail saddles; excludes saddles with plastic moulded bits.
[Made in the UK]  Designed, developed and manufactured in the UK for trusted quality and reliability.
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Cycling accessory that keeps riders drier and stops mud and water clogging the top of the seat post. Commuters and trail riders gain more comfort and less mess on wet rides with Mucky Nutz Butt Fender. Worth fitting to a conventional double steel rail saddle, or an unnecessary extra for some riders?

⚡ At a Glance
  • Mud Protection: Directs splash and grit away from saddle and seat post
  • Best for: Commuters and mountain bikers who ride in wet or muddy conditions
  • Not ideal for: Saddles with integrated plastic mouldings or non-standard rail designs

Thicker, re-profiled rear fender clips onto standard double steel rails without fasteners. Designed and manufactured in the UK for durable, easy fitting.


Keeps riders dry and seats clean - thanks to re-profiled thicker design

Re-profiled shape and thicker construction direct splash and grit down and away from the saddle and seat post, reducing water migration and clogging. The more robust profile resists flex so spray is deflected rather than pushed up into the saddle rails.

Riders stay drier on wet commutes and muddy trails, protecting clothing and the top of the seat post.

Tool-free, quick fit and secure - with a fastener-free clip design

A simple clip slips onto standard double steel rails and relies on a secure fit rather than additional bolts or straps. The clever, fastener-free approach sits in place once tensioned against the rails.

Installation takes seconds and remains secure during normal riding, making roadside adjustments straightforward when required.

Durable under real conditions - with thicker, stronger construction

Thicker, stronger and re-profiled moulding resists abrasion from grit and impacts from debris. User feedback highlights long-term wear resistance and hard-wearing performance.

Long service life reduces the need for frequent replacements, a practical benefit for regular riders.

✨ The 4 Key Reasons for Mucky Nutz Butt Fender
  1. Thicker re-profiled shape - Deflects road spray away from saddle and rider
  2. No fasteners needed - Quick fitting secures under rails without extra tools or straps
  3. Broad rail compatibility - Fits most double steel rail saddles without plastic obstruction
  4. Made in the UK - Locally designed and manufactured for consistent quality control
📋 Technical Details at a Glance
  • Category: Sports, rear saddle mudguard
  • Product type: Butt fender for bicycle saddles
  • Design: Thicker, stronger and re-profiled shape
  • Installation: No fasteners required, quick-fit clip
  • Compatibility: Most standard double steel rail saddles without moulded plastic bits
❓ Frequently Asked Questions

Q: Is the fender easy to fit?

A: Yes. No fasteners are required and the simple clip design is quick to fit and secures in place, with user reviews noting ease of fitting.

Q: Will it fit my saddle?

A: Compatible with most standard double steel rail saddles that do not have plastic moulded bits in the way, so check for non-standard rail shapes before fitting.

Q: Is it durable enough for regular use?

A: Durability is reinforced by the thicker, stronger re-profiled design and user reviews describe the item as hard-wearing and long-lasting.

🏆 Our Verdict

Ideal for commuters and mountain bikers who ride in wet or muddy conditions. Thicker, re-profiled shape and fastener-free clip keep saddle and seat post cleaner than standard setups. Durable construction and straightforward fitting deliver long-term value for regular riders.