Product Colors and Sizes

  • Black Friday product
  • New Deal product
  • Cyber Monday product
  • Clearance product
  • Deal product
  • Best Seller product
  • Ecodesign product
  • New product
  • Staff Pick product
  • In The News product
  • Innovation product
  • product

Rockrider 700, Mountain Biking Rear Mudguard

Sale price: $12.99 Regular price:

This mudguard for the rear wheel can be directly attached to the seat post in one step, without tools. Its articulated arm allows it to be fitted to any type of bike.

Color: Select a color
Size: Select a size
Sale price: $12.99 Regular price:

Free shipping over $35

See our return rules

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8363747

Product Features

A photo of the Rockrider 700, Mountain Biking Rear Mudguard in use

Rockrider 700, Mountain Biking Rear Mudguard | This mudguard is designed to protect you from mud, water, and debris kicked up by your MTB's rear wheel.

This mudguard for the rear wheel can be directly attached to the seat post in one step, without tools. Its articulated arm allows it to be fitted to any type of bike.


Protects the buttocks and lower back from tire spray.

Easy assembly/dismantling

Tool-free attachment to a seat post in a single step.


Fits seat posts with a 24 to 36 mm diameter & wheels from 26" to 29".


Withstands the vibrations of mountain biking.


Total weight: 5.6 oz.

Product Customer Reviews

Skip to reviews
1023 Reviews
Write a Review 

Rockrider 700, Mountain Biking Rear Mudguard,black
Filtered by reviews Loading reviews…
Does not work at all

At least for 29 wheels it does not protect from dirt

Protection from spray

Does exactly what it says on the box

icon-circle-checkmark verified purchase
Great value clip on mudguard

Quick and easy to fit or remove, adjustable as required, once fitted it's solid and stable. Using on hybrid bike with 700x40 wheel and covers well with room to spare.

icon-circle-checkmark verified purchase

Excellent mudguard, easy to fix.

icon-circle-checkmark verified purchase
Good removable tail guard.

Does what it is intended for with the advantage if having a quick release type fitting. A good purchase.

icon-circle-checkmark verified purchase

Rear mudguard used on 4 occasions. First 3 times needed to stop to re-adjust as it kept moving and slipping down the seat post. On the 4th time using it the clip snapped so I had to bin it in the nearest bin. Spend a bit more money and get a better quality product.

Best rear mudguard

I love this rear mudguard I almost use it on every bike I ride. Very easy to install and very effective as mud protection. Strongly recommend.

icon-circle-checkmark verified purchase
Poor fitting design

Fitted according to instructions, but unable to get it as tight as I would have liked and it just kept slipping down and going from side to side. Retried a couple more times, but no better. I then tried a pair of pliers to try to tighten it and broke the spring. Was then easier to get it tight, but without the spring had to tape it up to keep it in place.

icon-circle-checkmark verified purchase
Not durable

I have had this a good few months but with constant adjustment due to raising and lowering seat whilst riding the hills the spring on the clip came off and I can’t fix it. Was great until then. No receipt kept so doubt I can return.


Bought for a 29er. Ironically, front and rear bought separately were cheaper than the set.

icon-circle-checkmark verified purchase
Splatter prote tion

Cost effective product the mudguard is easy to fit and fully adjustable. Happy

icon-circle-checkmark verified purchase

Does the job, easy to fit.

icon-circle-checkmark verified purchase
Really easy to fit

Bought for my son's bike -fitted in a couple of minutes

icon-circle-checkmark verified purchase
700 MTB fender

Quality product-does the job keeping the mud off

icon-circle-checkmark verified purchase
Basic but efficient

Does the job, time will tell on quality but can’t complain on price.

icon-circle-checkmark verified purchase
Skip to reviews

Additional Product Information



  • 100% Polyamide 6. 6


  • 100% Polyamide 6. 6


  • 100% Stainless steel

Keep your buttocks and back protected from dirt!

This mudguard will protect your buttocks and back from rain and mud splashes. But be aware that you will always get dirty when mountain biking in wet and muddy conditions. You can never escape it entirely.



Care instructions

Wash with soap and water.

Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual