Bakflip G2 vs Undercover Flex: Explore The True Nature Of These Tonneau Covers

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Written By Waylon Joe

Hey, It’s Waylon “Joe” Kite here. I am a West Virginia native and a die-hard pickup truck fan. My story with trucks started with my dad’s 1989 Ford F-150, and it's still going on. I'll share all my trucking experiences (both great and gross ones) with you. I have a garage full of tools to fix and renovate trucks and a freezer full of ales. Do you want to join me?

What to do when choosing between shiny outlook and ease of use? Well, I know there will always be two groups picking one over another.

The situation is quite similar when choosing between Bakflip G2 vs Undercover Flex. 

Both covers have an aluminum frame, but Bakflip G2 has a glossy polypropylene fiber coating, and Undercover Flex comes with a glossy fiberglass-reinforced polymer. G2 features an Automatic Latching system, but Flex has Dual Action Tailgate Seal for Easy Operation. It’s a no-drill installation for both.

No wonder these two popular covers are flexing your mind too much. So I am ger to help you to get the right one. You only have to ask yourself which one you need and which is better for your truck: Bakflip G2 or Undercover Flex.

Bakflip G2 vs Undercover Flex: A Quick Comparison

I know… I know… it is not a wise idea to choose a tonneau cover just by glancing at the quick comparisons. I am also not asking you to.

But these glances and the quick comparison table will give you a precise idea about the significant differences.

Bakflip G2: A quick glance

  • Constructed with Gloss-black powder coated polypropylene fiber on aircraft-grade aluminum panels
  • Due to powder coated finish it has a Low-profile Appearance
  • Comes with an Automatic latching system
  • It has a Bolt-on clamping and no drill installation
  • Comes with 300 lbs of weight capacity
  • You will have a hassle free 3 years of warranty

Undercover Flex: A quick glance

  • Comes with Heavy-duty aluminum panels with a gloss black finished fiberglass-reinforced polymer (FRP)
  • Has a Low Profile design
  • Features a Dual Action Tailgate Seal for Easy Operation and Added Security
  •  It has a No Drill, bolt-on installation
  • Can take up to 300 lbs distributed weight
  • Comes with 3 years warranty

Quick Comparison Table

FactorBakflip G2Undercover Flex
MaterialsGloss-black powder coated polypropylene fiber on aircraft grade aluminum panelsHeavy-duty aluminum panels with a gloss black finished fiberglass-reinforced polymer (FRP)
Look/FinishLow-profile AppearanceLow Profile design
Safety FeaturesAutomatic latching systemDual Action Tailgate Seal for Easy Operation
InstallationBolt-on clamping and no-drill installationNo Drill, bolt-on installation
Weight Capacity300 lbs300 lbs
PriceBelow $900Below $1000
CompatibilityFits 2015 – 2020 Ford F-150Fits 2017 – 2022 Ford F-250/350
Warranty3 year warranty3 year warranty
Bakflip G2

Bakflip G2 Vs Undercover Flex: Differences You Must Know

What did I say? Now you are almost there to choose the best cover for your truck as you have a clearer idea about the features. It is time to elaborate. Let’s get to it.


Materials are essential factors truck owners keep in mind while choosing covers for their truck bed.

If I compare the materials, the Bakflip G2 features aircraft-grade aluminum panels. These panels are coated with Glossy black polypropylene fiber. This material gives your truck fine weather, UV crack or peels, and thieve resistance. This fantastic cover is designed to fit a 6 to 8 feet long truck bed. The construction quality ensures that the cover will last a long time. 

A plastic tube drains water away from the cover and out of your truck bed through the rails of the G2. A weather-resistant and highly durable EPDM seal is included to ensure that the bed rails are tightly sealed.

On the other hand, Undercover Flex is also constructed with heavy-duty aluminum. But the coating material is a glossy black finished fiberglass-reinforced polymer (FRP). This material not only gives your cover resistance against heavy impacts but also makes the cover lightweight. 

And as you know, you will also have an amazing low-profile appearance and UV resistance. 

Among hardcovers, only a few can be folded up to the cab and secured with prop rods, and Flex is one of them. The Flex has integrated channels into its side rails as part of its design. These rails guide water to the front and out of the truck bed to ensure that your cargo remains dry.

In my opinion, going for a lighter cover is a better option. 

Safety Features

Without safety features, a truck bed cover is worth nothing, right?

Keeping that in mind, Bakflip G2 is featured with an Automatic latching system. It locks and latches to keep thieves out, and when you’re done using it, it folds all the way open and stores behind your rear window.

After folding the cover up to the cab, you can access the full bed. You don’t have to remove the cover to do it. Protecting the cab from impact are rubber bumpers.

Undercover Flex has not fallen behind with its safety feature. It comes with Dual Action Tailgate Seal. Truck owners who believe in locking their truck bed manually and double check if it is secured or not, this locking system will amaze them.

It can be a hassle for people who love a one-handed or automatic locking system. But look at the bright side. After locking, even you will need bombs to get into your truck cover.

Based on your preferences, you can choose either an “automatic” or “manual” locking system.


If I talk about the price of these two tonneau covers, they are amazingly reasonable based on what they offer you.

Bakflip G2 cover starts from around $900, and Undercover Flex covers start from under $1000. You can say they are two tonneau covers under $1000.

Of course, the price may vary based on season, shop, website, and many other factors. But the difference will not be something unrealistic.


The Bakflip G2 tonneau cover features extremely durable seals made of EPDM. It fits amazingly well with the 2015 – 2020 Ford F-150’s 6′ 7″ Bed and keeps it out of any weather harm.

On the other hand, Undercover Flex cover mounts inside your 2017 – 2022 Ford F-250/350 truck bed rails. It gives your truck a superior sleek look. 

Undercover Flex

Bakflip G2 Vs Undercover Flex: a few similarities

I can Understand why there are so many complications while choosing just one tonneau cover between Bakflip G2 and Undercover Flex.

As I have elaborated on the differences between these two tonneau covers, a few similarities are bothering you as they share the same benefits.

Let me clarify these so that you can choose easily.

First, if I talk about the warranty, you will have three years of hassle-free Warranty with both the covers. And now, if you worry about weight capacity, both covers can handle 300lbs of distributed weight on them.

In this case, if you consider the price, going for the reasonable one with the same weight capacity is a better option.

Another significant similarity between these two covers is the installation process. Both have no drill or bolt-on installation. You will only need a few tools and less than an hour.

Rather than these similarities, there is nothing more to find in common between these two. 

Read also: Bakflip Mx4 Problems

Bakflip G2 vs Undercover Flex: Which One Is Better For Your Truck?

After reviewing my regular readers’ comments, one thing I have understood is that they always get stuck between choosing between two tonneau covers. Well, let me help you with Bakflip G2 and Undercover Flex. 

If you want to select between Bakflip G2 and Undercover Flex based on materials, my opinion will be to choose the Flex, as it is incredibly lightweight due to fiberglass-reinforced polymer (FRP).

I am not saying that the G2 is not worth it. But for truck owners who want a more lightweight cover, Flex is a perfect choice. 

Again if you want to choose based on a security system, depending on preferences, The G2 will be a great choice if you are fond of an automatic locking system.

But if you think double-checking your cargo lock with a manual locking system will be more applicable to you, then don’t look further than the Flex.

Nothing much to consider about the price range as they are almost the same. But if you have already gone through the similarities, don’t you think going for a reasonable price is better and wiser? Well, that’s up to you, folks. 

Read also: Best Weather Stripping For Tonneau Cover


Is it possible for pickup covers to leak?

Despite being water resistant, vinyl covers are not completely waterproof. Fiberglass hard pickup bed covers prevent leaks from occurring. Hard truck covers are the best way to stay dry and avoid damage to your truck.

When it comes to tonneau covers, how tight should they be?

Ensure the cover is drum tight and does not sag between the bows. Open the cover to access your tension adjusters if adjustments are needed. You can loosen the tension adjusters by turning them clockwise.

Is it possible to drive with the BAKFlip partially open?

Yes, of course. As part of BAKFlip’s design, you can go with the BAKFlip folded up against the cab. You can drive with the cover open at highway speeds, locking prop rods on each side.

Read also: Best Weather Stripping For Tonneau Cover


Here you have it, folks; I have broken down every possible difference between Bakflip G2 Vs Undercover Flex tonneau covers. 

Based on these differences, I am very confident that you will be able to choose the best one for your truck. And if you ask for my opinion, I will say that you must select your tonneau based on your need. 

For example, if you think you need a cover for professional purposes, you have to choose something sturdy and something with more secure options. But if you just want a tonneau for recreational purposes, I think going for a lightweight one is a wiser option.

I hope you will be able to get the right one. Best of luck!!

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