Bakflip MX4 and Bakflip Fibermax

We look at the popular BAKFlip MX4 and compare it to the slightly lesser-priced BAKFlip Fibermax

Sometimes it’s all in the details. We examine the technical and operational differences between the two tonneau covers so that truck owners can make an informed decision about their specific needs and requirements, such as the preferred material type, latching systems, and budget considerations.

Table of specification

FeatureBakflip MX4Bakflip Fibermax
MaterialIndustrial Grade AluminumAluminum and Fiberglass
Panel CoreFoam Core Sandwiched in AluminumAluminum
Number of PanelsFour PanelsThree Panels
FinishMatte BlackTextured Glossy Black
InstallationBolt on Installation.Bolt on Installation.
Look Low Profile AppearanceLow Profile Appearance
Cover TypeHard CoverHard Cover
Tailgate SealDual Action Tailgate SealFlap Seal
Bed AccessFull Bed AccessFull Bed Access
Latching SystemAutomatic Latching systemAutomatic Latching system
Weight carrying capacity400 lbs.- evenly distributed.300 lbs.- evenly distributed.
Check PriceCheck Price


Shared Features

Full Bed Access
No more struggling to access your cargo. Both the BAKFlip MX4 and BAKFlip Fibermax provide effortless full truck bed access.

Durability and Style
Enjoy the protection of your truck bed in any weather. The BAKFlip MX4 is made from a sleek aluminum panel with a matte finish and fiberglass-reinforced polymer frame. The BAKFlip Fibermax features high-quality, lightweight materials for strength and durability.

Safe & Secure
Keep your cargo protected with a secure attachment system offered on both covers.

Easy as 1-2-3
Effortlessly install your cover in no time. The BAKFlip MX4 and BAKFlip Fibermax offer a hassle-free installation process.

Fold it Up, Store it Away
Maximize bed space when needed with the foldable design of both covers.



Bakflip MX4Bakflip Fibermax
Top Panel Material

Top panel material

FRP (fiberglass reinforced polymer)


Matte black


Textured glossy black

Tailgate Seal
Dual Action Tailgate seal
Tailgate Seal
Flap seal
Weight Capacity
400 lbs. evenly distributed
Weight Capacity
300 lbs. evenly distributed
Check PriceCheck Price


Tailgate Seal
Dual action seals on the BAKFlip MX4 are designed to facilitate opening and closing the tailgate when the tonneau is down. Opening and closing are easier and the seal lasts longer.

Weight Capacity
BAKFlip MX4 supports an extra 100 pounds. You may not always need the extra weight capacity, but it’s nice to have when you do need it. 

A black matte or a textured glossy finish? This might be a dealbreaker if you prefer one over the other. 

Everyone has a budget. With a price difference of almost ~$200, this might sway you towards the Fibermax. 



It always comes down to your personal preferences and needs. If you’re after heavy-duty protection and rugged durability, the MX4 is the way to go.

But if you prefer a lighter, more manageable option, the Fibermax is the perfect fit. Maybe you don’t need the extra weight capacity. Some owners go the entire life of their truck without putting anything on top of the tonneau cover. What they want is the security of being able to lock tools or musical equipment into the truck bed. They don’t need to spend the extra money. They can put that money towards more band equipment. 

So, weigh your options, and choose the tonneau cover that delivers what you need.

About the author

David Patterson

Our editor, who brings a wealth of experience in tonneau covers and truck accessories sales to our editorial team. With over a decade in the industry, David has a deep understanding of the products and a knack for helping customers find the perfect fit for their trucks.

Add Comment

Click here to post a comment