Sports & fitness

Fat Bike Rear Fenders: 3D Printed STL Mudguards

This collection gathers 3D printing files for rear fenders and mudguards on fat bikes, from wide single guards to full front-and-rear sets and the brackets that hold them. It is useful if you want a part shaped around an oversized tire instead of a universal one. Most files are STL meshes meant for a 3D printer, with the mounting hardware described on the author's page. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

A Polyzon collection · 46 models from 3 platforms

How this collection is put together

Polyzon assembles this collection from search results on the connected platforms. Repeats and models without a preview are removed, weak matches go to the end, and the rest keeps the search order. Models belong to their authors — check the terms on each model's page.

Selection rules: the Polyzon editorial team · Text updated 2026-10-14

View the collection Show all: 2628 models →
Collection

Start here

All models in this collection

Show all: 2628 models
About the category

«Fat Bike Rear Fenders: 3D Printed STL Mudguards»

The models fall into a few groups. Some are rear-only guards that cover the wheel from the seat stay down, others are matched front-and-rear sets, and a third group covers wide mud guards sized for fat tires. Separate listings handle the small parts: mounting clips, bracket adapters, and kits that combine a fender with a rack bumper or a light relocation piece. Full-suspension frames get their own variants, since the guard has to clear a moving linkage rather than a fixed stay.

Before printing, compare the model against your actual setup. Check the stated wheel size and tire width, then measure the clearance between the tire and the frame or rack, because a guard that is too wide or too deep will rub. Look at how many parts the file contains and how they join, whether the author notes supports, and which material and layer settings are listed. Photos of real prints on the model page usually show more about stiffness and mounting than the render does.

If the first search returns little, try other words for the same object: mudguard, splash guard, mud flap, fender skirt, or the Italian term parafango used in some titles. Related searches help too, such as rear rack bumper, light relocation bracket, or mounting clips. Adding the wheel size and tire width to the query narrows results further, and swapping fat bike for fatbike or e-bike often surfaces a different set of files.

FAQ

Frequently asked questions

What is the difference between a fender and a mudguard?
They usually mean the same part. Titles in this collection use both words, sometimes together, so searching one term and then the other is worth doing.
How do I pick a rear fender for a fat bike?
Start with the tire width and wheel size given on the model page, then measure the clearance to your frame, rack or suspension linkage. A guard shaped for a narrower tire may not cover an oversized one.
Do these fender models need supports?
It depends on the geometry. Curved shells often print without them, while brackets with overhangs may not. Check the print notes and photos the author provides.
Can a fender model be scaled to another wheel size?
Scaling changes wall thickness and the size of mounting holes along with the overall shape. If you resize a file, check that the holes still match your bolts and that the guard clears the tire.
Related
Sports & fitness

3D-модели крыла заднего для велосипеда

3068 models
Sports & fitness

3D-модели заднего крыла для эндуро

18375 models
Vehicles

STL-модели задних крыльев на мотоцикл для 3D-принтера

3254 models
Vehicles

3D-модели задних крыльев для электросамокатов

4299 models
Vehicles

3D-модели задних крыльев для KTM

16760 models
Vehicles

STL заднее крыло Husqvarna для 3D-принтера

8616 models

All 3D model categories

The full catalog of topics — from home & household to CNC, searchable across the connected sources.

Open the category catalog