Fat Bike Fenders Review

Updated on June 3, 2022

Large tyres are the distinguishing feature of a fat bike. In addition to providing good traction and cushioning, the large bits of rubber function as magnets for road grit and sand. Fatty bike tyres are often described as “shedders” because of their supposed ability to “shed mud” easily. Aside from the dirt-caked front tyre, this is a wonderful way to lighten your tyres. Once you get moving, your back tyre will spray you with muck and sludge. You may avoid this by purchasing the best fat bike fenders available.

Fat Bike Fenders Review

  • MATERIALPlastic
  • WEIGHT42g (front) 45g (rear)
  • FENDER TYPESeparate
  • Extra Wide To Cover Fat Tires
  • Rear Fender Attaches To Saddle Rails For Easy Installation
  • Pre-Molded Bend Points Allow Width Adjustment

2. Portland Design Works Mud Shovel

  • Length: 8.8-inch front) & 22.5-inch (rear)
  • Width: 5.5-inch (front & rear)
  • Weight: 5.64oz (front) & 5.6oz (rear)
  • Material: Polymer
  • Type: rear seat post & front downtube

When purchased as a set, these Portland Design Works front and rear mudguards collect a significant amount of muck. These fenders have similar attachments to the best-rated SKS-Germany Fenders.

Because of its durability, the long-lasting polymer won’t be damaged by trail or snow abrasion.


  • When the weather is nice, you can remove your fat bike’s fenders and ride without them.
  • Fat bikes put a lot of strain on plastic, so it’s designed to withstand years of abuse. To last a lifetime.
  • MATERIALPlastic
  • LENGTH24.5” (Front), 22.5” (Rear)
  • WIDTH8” (Front), 6” (Rear)
  • FENDER TYPESeparate
  • Extra Long And Wide To Fit Any Fat Bike
  • Front Fender Mounts To Down Tube With Secure Straps
  • Rear Fender Mounts In Seconds To Any Seatpost


There is a company called Portland Design Works that specialises in manufacturing rain gear for cyclists and people who live in this city that is prone to rain. These fenders aren’t just big; they’re gigantic. They’re wide enough to keep spray and debris off even the largest tyres. As a result of the ease with which they can be installed and removed, you can use the same pair of fenders on multiple bikes. This is the fender for folks who don’t mind having a visible addition on their bike.

There are pros and downsides to having large fenders on a boat. Some of these items may be too much for those who are looking for simple, discreet additions and who ride in a lot of mud.

4. Planet Bike Big Buck Board

  • Length: 29.5-inch (front) & 22.9-inch (rear)
  • Width: 4.52-inch (front) & 5.5-inch (rear)
  • Weight: 6.4oz (front) & 7.2oz (rear)
  • Material: Polypropylene
  • Type: rear seat post & front steerer tube

The Planet Bike Big Buck front and rear fenders are designed to endure severe mud spray and give good coverage. Because it covers more of the wheel’s front end, the front fender is more protective than standard downtube mudguards..

This is one area where most fat bike mudguards fall short, and you’ll be glad you have one of these when riding in the slush and ice this winter.

Polypropylene is the material used to make the blades, and it is strong enough to handle even the hardest winter commutes.

The included fittings make it easy to attach the front fender to the steerer tube, and it is very secure once it is. The quick-release system that secures the rear fender to the seatpost makes attaching it a breeze.


  • Fenders are designed to protect the front wheel more effectively than traditional mudguards.
  • Installs with simple fasteners to the bottom of your steerer post. Securing
  • These extra-wide rims are designed to accommodate 5-inch wide tyres.

5. Axiom Rearrunner & Frontrunner

  • Length: 16.65-inch (front) & 27-inch (rear)
  • Width: 7.85-inch (front) & 8-inch (rear)
  • Weight: 4oz (front) & 8.8oz (rear)
  • Material: Polypropylene
  • Type: rear seat post & front downtube

The Axiom Rearrunner and Frontrunner are wide enough to catch a lot of the flying debris and filth.

There’s no need for any tools to get the job done quickly and easily. Fenders can be added or removed from the bike using an easy-to-install mount. Additionally, a Boa-style clasp on the seatpost secures the fender in place for your safety.

The rear fender may be hand-formed to fit your setup and provide the best mud-catching performance possible.


  • The odds of getting a face-full of mud if you attached these to your fat bike are little to none.
  • Once the mounts and fenders are in place, you’ll be ready to hit the road in no time. There’s no need for any special equipment.
  • When it’s raining, it’s simple to remove the fenders from their attachments.

Types Of Fat Bike Fenders

Full Fenders

Front and rear wheels are protected by full fenders that sit close to the tyres for maximum protection from the weather. Fat bikes are less likely to utilise this type of fender than winter-proofed road bikes.

This is due in large part to the fact that fat bike frames often have fewer attachment points. A vehicle with extra-wide tyres would be unwieldy and unwieldy.

Despite the fact that fat bike fenders do not fit as firmly around the tyres, they nonetheless protect the rider from flying muck A quick-release mechanism is used to attach fat bike rear fenders to the seatpost instead of the bike’s frame.

Crud Catchers

It’s a new generation of simple, fast-attaching fenders designed to protect the rider from the most extreme spray.

With two notches in the plastic, it glides under the saddle rails and is held in place securely. This is a great alternative for riders who only occasionally use fenders and don’t want to go through the hassle of taking them off each time.

Fat Fender Features To Look Out For

Fender Width

If you want to stay dry and clean while riding a fat bike, you’ll need to pay more attention to your fenders.

The fender’s width should be bigger than the tire’s width in order to avoid overlapping tyres and fenders.

Depending on the design, you may need to widen your fat bike frame to accommodate a wider fender. The increased width at this point helps the fender catch mud when the front wheel moves side-to-side during steering.


Fenders can be attached to a bike frame using integrated mounting points. Because fat bike frames typically lack mounting points, fenders must be attached in a unique manner.

A quick-release device is commonly used to attach the rear fender to the seatpost. While still allowing for appropriate clearance between the tyre and front fender, a mounting method with many pivot points will be used.

Velcro straps hold the front mudguard to the downtube with great force.

All it takes to get the system up and running is a simple two-second installation for even the most inexperienced of bike mechanics.

When the weather improves, you can easily remove the fenders and mudguards, saving you the trouble of transporting the extra weight.

Your fenders will keep in place no matter how rough the route is if you utilise these attachments.

Mudguards, like Mucky Nutz, can be mounted to the saddle rails using cable ties at a lower price point. They’re simple to use, although they sometimes break apart on rocky trails.


Running rear fenders necessitates adequate clearance above the tyre. As a general guideline, you should leave at least a half-inch between the tyre and the fender for each tyre, but this can be risky in extremely sticky situations.

However, it’s something to bear in mind when you’re riding fat bikes with fenders and mudguards. If you don’t want to get stuck in the mud, you may want to get rid of your fenders altogether.


You may expect any fender you install on your fat bike to be able to resist the same amount of abuse as your bike itself.

They can withstand any impact if they are made of sturdy plastic.