Cooper Discoverer STT Pro Review: Unbeatable Off-Road Traction for Your Adventures

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Cooper Discoverer Stt Pro Review


  • Outstanding mud-terrain and rock-terrain traction
  • Very good traction on hard-packed surfaces
  • Impressively quiet and comfortable for an off-road tire
  • Good on-road characteristics
  • Fair pricing


  • Traction on packed snow and ice is lackluster
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Owners of trucks and SUVs are still under the impression that off-road tires are the superior option for their vehicles, in spite of the undeniable drawbacks that off-road tires inevitably present when it comes to on-road use. Simply put, people adore the appearance of these tires, particularly when they are mounted on a genuine off-road truck.

Now, we’re not going to fight with it because we believe that everyone has the right to have an opinion. On the other hand, given that we are a source of information, we do not suggest using off-road tires on regular roads. Even while the majority of contemporary off-road tires may be used for driving on the street, this does not mean that they are as good as highway tires.

Having said that, there are a lot of enthusiasts who will use these tires to their utmost potential because of their capabilities. The past few years have seen an uptick in interest in off-roading, which has led to an accompanying rise in the number of people who participate in this activity. Off-road tires or mud-terrain tires are the obvious choice for those in this situation.

The Cooper Discoverer STT Pro is currently regarded as one of the very best off-road tires that can be purchased. The STT Pro is intended for installation on pickup trucks and sport utility vehicles (SUVs) that have exceptional off-road capabilities. Its primary purpose is to provide the driver with exceptional traction on terrain that are prone to sliding, such as gravel, dirt, mud, and stones.

In addition to this, Cooper made certain that the tire may be used successfully on the road. Off-road and mud-terrain tires are infamous for their high levels of noise and discomfort, and some of them aren’t particularly safe for driving in spirited conditions. The STT Pro makes an effort to address these concerns to the best of its ability.

Up until this point, we had been trained to have faith in Cooper Tire as a business. They don’t compete in the premium market, but they provide excellent items that ensure drivers’ safety and dependability. On the other hand, this does not imply that we did not put the STT Pro through its paces to see how well it performs in the most trying circumstances.

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In this study of the Cooper Discoverer STT Pro, we investigate whether or not the claims made by Cooper regarding the vehicle’s increased comfort, usable on-road handling, and superb off-road traction are accurate.

We put the tires through their paces in a number of different tests, gauging their performance in areas such as on-road handling (both dry and wet), snow traction, off-road traction, comfort, and durability. Let’s dig in!

What are the features of the Cooper Discoverer STT Pro?

The Cooper Discoverer STT Pro is an all-season off-road tire that was developed to provide the driver with the highest possible level of grip in a wide range of varied off-road conditions.The STT Pro, much like the other tires in its category, is primarily intended for use on trucks and SUVs that have 4×4 drivetrains. Examples of such vehicles include Jeeps, Toyota 4Runners, Land Cruisers, Chevrolet Colorados, and other similar models. To put it another way, if you possess a truck that is capable of going off-road and you want to make use of that capability, then these tires are an excellent choice for you.The Cooper Discoverer STT Pro is offered in a wide variety of diameters, starting at 15 inches and going all the way up to 22 inches. This should include drivers of more mature off-road vehicles, in addition to drivers of the most recent generation of trucks and SUVs. The STT Pro is one of the top products available in this category due to the wide range of sizes it offers.

Cooper included a wide variety of cutting-edge innovations into the Discoverer STT Pro in order to cater to the requirements of off-road enthusiasts. The durable tread compound with a chip- and tear-resistance that should not wear quickly even in the most rigorous situations is probably the most significant one.

The Armor-Tek3 Construction technology is what sets the STT Pro apart from other off-road tires in terms of how it differentiates itself from the competition. The technology consists, in its most basic form, of a combination of a three-ply polyester casing to strengthen its resistance to punctures, two wide and robust steel belts to support the tread, and a single nylon cap ply reinforcement to provide further support. According to Cooper, the fact that the third ply runs at an angle that is 8 degrees off further improves the puncture resistance by up to 2.5 times.

A pattern of aggressive, high-void treading has been formed out of the tread compound, much like the tread patterns found on the majority of off-road and mud-terrain tires. In light of this, Cooper designed additional alternating cleats and scoops in the shoulder lugs to improve mud traction. Additionally, mud release dimples were incorporated into the tread blocks of the tires.

In addition, the STT Pro is outfitted with anti-stone retention ribs, which are designed to expel smaller pebbles and protect the tire from punctures as a result. Wide lateral and circumferential channels, which provide higher resistance to hydroplaning, as well as additional in-bloc sipes, which improve grip on wet roads, are included in the design of the tire’s wet traction and stability features.

Having said that, the Discoverer STT Pro is an all-season tire, and it only comes with the M+S sign, which indicates that it can only be used on unpacked snow. This is the only circumstance in which it may be utilized. In this regard, certain rivals come equipped with the 3PMSF symbol, which identifies their suitability for usage on unpacked snow.

In our assessment of the Cooper Discoverer STT Pro, we placed a lot of emphasis on the fact that the tread ribs of the STT Pro have a distinctive design that features a 3-2 split, which helps to reduce road noise and improves the tire’s overall stability.

Cooper Discoverer Stt Pro Review

What are the maintenance indicators?

The Discoverer STT Pro does not have any maintenance indicator markings, just like the vast majority of mud-terrain tires. The tread on this tire, on the other hand, is extremely aggressive and deep, which means that it will keep its wet traction and braking ability for a longer period of time. To put it another way, you will most likely replace the tires well before the point where they can no longer be used for driving on the road.

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However, given the nature of this category, it is not surprising that Cooper does not provide a treadwear warranty with the STT Pro. People who have had these tires for a while note that the tread compound is quite tough and that it does not wear quickly. This is maybe the most crucial aspect of these tires. Even if you travel frequently on hard-packed surfaces like dirt, gravel, and pebbles, you should still be able to get roughly 30,000 miles out of a single pair of tires.

Is it good for off-road driving?

Cooper Discoverer Stt Pro Review

I take it that this is the most important factor influencing your decision to purchase this tire, right? When it comes to traction off-road, one of the greatest tires available is the Cooper Discoverer STT Pro from Cooper Tire & Rubber Company. Its overall performance is comparable to that of premium products manufactured by Goodyear and BFGoodrich, which retail for over one hundred dollars more for a set of four tires.

But, let’s delve into more detail. Even at greater speeds, the STT Pro maintains its excellent responsiveness on terrain that are hard-packed because of the durable tread compound. Additionally, the levels of grip and traction are exceptional, ranking among the highest possible in this area. In addition, because the stone retention technology is so effective, there will be no need to clean the tires afterward.

In addition to this, the Discoverer STT Pro operates quite well even while traversing larger boulders. The tough tread composition not only helps keep the tire intact but also contributes to the tire’s increased durability. Last but not least, the STT Pro’s performance in muddy terrain left us with a positive impression. The tire has sufficient traction to get you out of the thick muck, and it will not get muddy even after you use it.

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In the final analysis of our Cooper Discoverer STT Pro review, we came to the conclusion that the tire performs just as well as its premium competitors, despite the fact that it is more affordable. Indeed, that is impressive.

How does it behave on a dry tarmac?

To our astonishment, the STT Pro does not display the typical drawbacks associated with off-road tires to the same extent as other goods. Although the tire’s handling and braking capabilities won’t blow your mind, we believe that this model is as excellent as it gets for an aggressive off-road tire and that there is no better option available.

When traveling at normal speeds, the Discoverer STT Pro exhibits a level of responsiveness that is satisfactory, and it offers the driver impressive levels of grip and traction. In addition, the weight of this tire is quite low, which, in comparison to the weight of other tires in this category, results in improved performance and reduced fuel consumption.

How is it over wet and slippery roads?

Once again, the best that can be found in an off-road tire. The STT Pro has an impressively large number of sipes, which contributes to its excellent performance in wet conditions. When it comes to day-to-day driving, the vehicle’s traction and grip on wet asphalt are adequate, but its resistance to hydroplaning in moderate to heavy rain is exceptional.

In general, Cooper did an excellent job of creating the Discoverer STT Pro street- and highway-capable. It’s not spectacular, but it does the work that needs to be done. That is something that will undoubtedly be appreciated by the vast majority of off-road aficionados.

With that being said, how is it on snowy roads?

The Discoverer STT Pro has a tread pattern that is both deep and aggressive, giving the impression that it can handle even the most severe winter conditions without any problems. When it comes to snow traction, however, the tread pattern is not the only factor to consider, as this example demonstrates.

Because it does not have sufficient siping and biting edges, the Discoverer STT Pro cannot be used on packed snow and, more importantly, on ice. Under these conditions, the tires are unable to grip the road properly, which makes it difficult for the driver to steer. The answer is yes, you can use them for driving on unpacked snow; but, you won’t find yourself in that situation very often.

When it comes to how well it performs in the snow, we believe that the premium competition does a little bit better than average. However, in the end, investing in a good set of winter tires is going to be your best bet for driving in severe winter weather.

Is it comfortable and refined?

Should I buy the Cooper Discoverer STT Pro?

However, we are at a loss to explain why you shouldn’t go ahead and purchase a set of Discoverer STT Pros. Cooper was able to build a tire that is capable of performing exceptionally well on slick off-road surfaces while yet being suitable for use on paved roads. Even more impressive is the fact that they were able to maintain a pricing that was lower than the premium competition despite obtaining performance that was comparable.

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