Both the Undercover and BAKflip have a similar set of features. So, it’s really hard to choose one between these two. However, comparing the two side by side may help you choose the one with the most optimal set of features for your liking.
Undercover Flex Tonneau Cover vs BAKflip
Undercover Flex and BAKflip are two of the most reliable tonneau covers in the market. Comparing them based on some features may give you the idea of which one is the best for your vehicle.

Clamps
Both the Undercover Flex and the BAKflip introduce a no drilling installation procedure. As a result, both the covers are very easy to install and remove with a convenient clamp-on design.
The clamps and latches are included with the cover. So, you don’t need to buy them separately. They are mounted on the rail bed to keep the cover securely in place.
Most importantly, both the clamps are well manufactured. So, they provide tight and secure sealing against snow and rain. In any case, you can barely pick one among the two based on the quality and service of the clamps.

Replacement Parts
Replacement parts are pretty easy to find for both tonneau covers. For the Undercover Flex cover, you can get replacement parts at the company website. They can also guide you to a nearby dealer. This is the same for BAkflip.
However, compared to Undercover Flex, replacement parts for BAKflip are easier to find. Apart from the company website, they are also available at various online stores. Moreover, Undercover Flex has a five years warranty, whereas most BAKflip covers come with only one year warranty.

Installation
The installation process of the Undercover Flex is quite easy. It might take you from 30 minutes to 1 hour to correctly finish installing the cover. However, if you are a beginner, the whole process may seem a little difficult to you. In that case, you can get some professional help if you want.
All the models of Undercover flex come with an installation manual. The manual is well written and easy to understand. So, even if you are a little stuck, you can always follow the manual for the right procedure.
On the contrary, the installation process of the BAKflip cover is almost similar to that of Undercover Flex covers. They also provide a well-instructed manual to follow. So, it’s always wiser to read the manual thoroughly before getting into it. BAkflip also takes from 30 minutes to 1 hour for the installation process.
Problems
If you are going to spend so many bucks on these tonneau covers, you should also know the negative side of them. And it’s quite normal that both covers come with a few problems.
For the Undercover Flex, the main issue is water leakage. After a good year or two, you are likely to face some leakage problems. So you must know how to fix the leaking tonneau cover. The leaking problem can be solved using silicon or rubber strips. Also, the coating on the fiberglass panel deteriorates with time. As a result, the cover may look faded after just one year of regular use.
On the other hand, the BAKflip has some quality concerns. Comparatively, BAKflip covers have the worse durability of the two. The adhesive is not of the best quality, and the cover might start coming apart after just a year or so. It is also likely that the large panel will bow up around the same time.

Undercover Ultra Flex vs Bakflip F1
The Undercover Ultra Flex is one of the best hardcovers in the market. Some unique features give it the edge over the BAKflip F1.
First of all, the Ultra Flex has durable aluminum panels that come with a matte-black finish. There under-panel is carpeted. Besides, there is an integrated LED bed rail light for better visibility under the cover.
Also, the Ultra Flex can be partially or fully closed or fully open. This cover can also fold into an upright position without touching the back of the cab. Furthermore, the Ultra Flex comes with a five-year warranty.
On the other hand, the BAKflip F1 offers a better drainage system and a better price than the Ultra Flex. And, it’s made of reinforced polymer. Unlike the Ultra Flex, there is no under-panel carpeting or LED bed rails in the F1. However, it comes with a five-year warranty.

Undercover Armor Flex vs Ultra Flex
Unlike the Ultra Flex, the Armor Flex does not include any under-panel carpeting or any integrated lights. But the Armor Flex comes with the Line-X coating, which provides better durability.
The Ultra Flex has a better water-proofing of the two covers. It’s also slightly more expensive than the Armor Flex. However, the extra features are worth the extra money. Despite being the most expensive one, Ultra Flex is the most sold hardcover by Undercover for this reason.
What is the Difference Between the BAKFlip g2 and mx4?
The BAKflip MX4 is more of a premium version of the BAKflip G2 cover.
The MX4 has a more durable matte black finish, while the G2 comes with a glossy black finish. Besides, the high-density foam core allows the MX4 to support up to 400 pounds on its top surface compared to the 300 pounds supported by the G2.
Again, the MX4 has a dual-action tailgate seal, which allows it to open and close the truck’s tailgate independent of the tonneau cover’s position. On the contrary, the overlapping tailgate seal on G2 dictates the truck tailgate. So, you will need to close your tailgate to close the cover.
The MX4 also has a better warranty period of three years, whereas the G2 has a two-year warranty.
Which is Better BAKFlip mx4 vs f1?
The MX4 and the F1 are quite similar in design but they serve different purposes.
The F1 is the heavy-duty tonneau cover from BAKflip. It has fiberglass-reinforced panels that give better protection against scratches and dents. If you want a sturdy and durable tonneau cover, you should go for the F1.
On the other hand, in case you want a matte black finish and a lighter, MPH-friendly tonneau cover, you should choose the MX4. The MX4 comes with Aluminum panes and Line-X finishing. This makes the MX4 lighter and the better looking of the two.

Frequently Asked Question
Q: Do Undercover/BAKflip cover leak?
Ans: Both Undercover and BAKflip covers leak some water.
Q: How long do hard tonneau covers last?
Ans: A good hard tonneau cover can last over five years.
Q: Should I get a hard or soft tonneau cover for better security?
Ans: Hardcovers are far more secure than soft tonneau covers.
Conclusion
Both being two of the most versatile and reliable tonneau covers in the market, it’s rather hard to choose the right one for your truck. However, comparing the two with the right models and numbers will definitely help you make the decision.
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