In-Depth Reviews

In-Depth Review: Bak Hard-Rolling Tonneau Covers

Bak Hard Rolling Tonneau Covers

Durability and security are the first things to consider before you get a Tonneau Cover for your truck. They help to keep your pickup and loads safe from bad weather and theft. 

However, not all tonneau covers may be suitable for your need. Choosing the right tonneau cover for your truck can be tricky.

BAKFlip tonneau covers are quality and superior covers designed to produce maximum protection for your truck bed and cargo. It is manufactured by passionate strategists, experts, and designers who enjoy working on trucks.

This article reviews what makes the BAK revolver Tonneau covers stand out among other tonneau covers. Also, we consider the differences between the X2, X4 and X4S BAK revolver Tonneau covers. 



Regarding design and mode of operation, BAK incorporated a similar design for the X2, X4 and X4S. 

They incorporate a string latch which is used to open up the cover. The string latch can be located below the cover and is easy to use. All you have to do is pull, and it will open up.  

In addition to the design, the rolling Tonneau covers use a unique locking system called the rotation locking system, which you cannot find anywhere else. Once the cover is shut, all you need to do is lock the tailgate, and you can be sure that your cargo will receive premium protection.

The lock also ensures that your load stays intact even when driving on rough roads. Also, its perfect seal protects your cargo regardless of the weather condition and even with your sticky fingers.

Another factor that makes the design of the X2, X4 and X4S worth your money is the installation process.

BAK designed the rolling covers to make them very easy to install, requiring no drilling and simple tools. 

They all make use of bolt-on clamps. You can bolt the clamps into position using a wrench and a screwdriver. 

Furthermore, BAK rolling Tonneau covers can hold up to 400 lbs of equally distributed weight. 

To use the rolling cover, all you need to do is roll the cover towards the tailgate. With the help of an automated slam latch, the cover is easily locked in place. It uses straps and buckles, which help hold the cover when it is open, keeping it from slamming short. However, the X4S has a more advanced buckling strap than the X2 and X4.  


The Revolver X2, X4 and X4s are made using the same material. They are made from premium Aluminum and Vinyl material which helps to make the cover hard and protect the cargo area when driving. Although they have the same material, X2 has a  different finishing from the rest. 

Regardless,  X4 and X4S do have the same finishing. They both come with a Matte finishing, an improvement from the X2 finishing. The finishing helps the cover absorb light better, giving the cover a perfect look anytime and any day. Matte finish also does not allow water into the steel material, giving users long-lasting use. 


BAK offers a good warranty for all its products. For the revolver X2 Tonneau cover, you can get 3 years of warranty coverage. While for the X4 and X4S, you get 5 years of warranty coverage. 


BAK Revolver X2 Tonneau Cover

The Revolver X2 is made using quality steel material and vinyl grain finishing. The steel material and the vinyl grain coating do not allow any form of foreign material to cause rust to the rolling covers.

It is designed to have a smooth and shining look while at the same time not attracting attention to itself. Revolver X2 design will complement your vehicle’s look no matter the truck’s color. 

In addition, the X2 cover uses an EPDM rubber seal located at the side of the covers. The seal ensures that water, snow or dirt does not come through the sides. 

Under the carriage, you can see how the X2 works. It offers you a view of the aluminum steel and the secure lever system that offers the roll and close secure features. 

It does not allow you to pass through extra stress of closing the cover. Also, you can find the unlock cable, which is very easy to find and operate.  

The X2 also offers the perfect tailgate seal for you. You can close the tailgate either after you close the cover or before you do so. You do not need to worry if you forget to secure the tailgate before the cover.  


BAK Revolver X4 Tonneau Cover

BAK Revolver X4 Hard Rolling Truck Bed Tonneau Cover | 79329 | Fits 2015 - 2020 Ford F-150 5' 7" Bed (67.1")
  • Fits 2015 - 2020 Ford F-150 5' 7" Bed (67.1")
  • UNRIVALED DURABILITY | The RX4 hard rolling tonneau cover is constructed with a matte-finished black...
  • UNRIVALED SECURITY | RX4 features patented rotational locking rails to secure the cover the entire...
  • UNRIVALED CONVENIENCE | The RX4 releases with a hidden cable on either side of the truck bed. It...
  • UNRIVALED SUPPORT | The BAK Revolver X4 is America’s #1 selling hard rolling truck bed cover....

One reason you should choose the X4 is that it is designed to be very hard in nature, which allows it to give the cargo area maximum protection from any external factor.

It comes with heavy-duty aluminum slats, which are pressure bonded. It uses a robust seal which encompasses weather-resistant protection provided by the coating of the cover. 

When water comes in contact with the cover, it flows without being absorbed by the covering or getting into the cargo area.

Furthermore, there is no need to use a Velcro strap with the X4 cover as it operates by rolling up the cover giving it a flush fit design. The design allows for full access to the bed. 

It allows you to fit in larger cargos like furniture and equipment without worrying that the cover will not close properly. With this feature, you can also have a clear rear view when driving while the cover is open. 

The X4 Tonneau cover is far superior to the X2 cover and provides a lot of improvements to many similar features. 


BAK Revolver X4S Tonneau Cover

BAK Revolver X4s Hard Rolling Truck Bed Tonneau Cover | 80339 | Fits 2021 - 2023 Ford F-150 (incl. Raptor/Lightning) 5' 7" Bed (67.1")
  • Fits 2021 - 2022 Ford F-150 5' 7" Bed (67.1") NEW! Precisely engineered for compatibility with...
  • ALL MATTE BLACK | Top-to-bottom, matte-black finishes make this hard roll-up truck bed cover a...
  • ONE-HAND OPERATION | This truck bed cover rolls with just one hand. Simply, pull down on the...
  • ALL ACCESS | X4s rolls smoothly, storing tight against the cab, & secures with a durable strap &...
  • EXPECT MORE | The BAK Revolver X4s is proudly made in the USA with globally sourced materials and is...

The X4S is built just like the X4, but it is designed to perform better. Both come with similar finishing but what makes the X4s greater is that it is designed to have better real-world durability while also giving a spectacular look. What it means is that anything the X4 can do, you can expect the X4s to do better.

X4S provides a perfect seal for the cargo area from any element, as it integrates a bulkhead seal. The seal fits best with the bed caps and does not provide any opening for elements to get into the cargo. The covering also has a rugged mechanical structure that allows it to endure any usage. As much as it comes with a rugged frame, it still provides a much easy process of handling.

X4S performs better when it comes to its anti-theft feature. The vehicle bed is protected using an advanced locking system, which is still the same rotational locking system but just more advanced than previous covers. 

A lot of intensions was put into creating the X4S, and the downside of other models is what we consider when designing the cover. 

BAK Revolver X4S prices

2004-14 Ford F150Check Price
2015-20 Ford F150Check Price
2021-23 Ford F150Check Price
1999-07 Ford F250 / F350 Super DutyCheck Price
2008-16 Ford F250 / F350 Super Duty Check Price
2017-23 Ford F250 / F350 Super Duty Check Price
2009-21 Dodge RamCheck Price
2019-23 Dodge RamCheck Price
2004-13 GM Silverado, SierraCheck Price
2014-18 GM Silverado, Sierra Check Price
2019-23 GM Silverado, Sierra Check Price
2015-22 GM Colorado, CanyonCheck Price
2007-21 Toyota Tundra Check Price

Update: for more details, read our BAK Revolver X4S review here.



If you are wondering which of these rolling tonneau covers is the best, we recommend the revolver X4S cover. It is a more recent cover released by BAK and serves as an improvement to the previously released cover. 

It is also more expensive than the other Tonneau covers but comes with a superior aluminum steel material and is coated with better-textured vinyl. 

The X4 also provides superior quality and is more advanced than the X2 rolling cover. It performs better in weather resistance and also be much more durable than the X2. 

On the other, the X2 is also a very good rolling cover but does not perform as well as the X4 and X4S. One thing that makes it stand out is that it is a more affordable way to give your truck’s cargo area premium security. 

This post contains affiliate links. As an Amazon Associate, we earn from qualifying purchases. Last update on 2023-09-25. Images from Amazon Product Advertising API

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.

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