TireTerrain

Cooper Discoverer AT3 XLT

Cooper Discoverer AT3 XLT Review

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Cooper Discoverer AT3 XLT stands out in the AT3 series as the largest and most aggressive option. In contrast to its sibling, the AT3 4S, it’s exclusively available in LT sizes. Now, it may not top the charts as the best off-road tire, but from my perspective, it excels for those who primarily drive on highways with occasional mild off-road adventures. It strikes a balance, offering reliable performance where it matters most for everyday drivers

I've noticed a standout feature in the Cooper Discoverer AT3 XLT: its beefy sidewalls. These aren't merely for looks; they create extra biting edges when you air them down, which I've found greatly improves off-road grip
Cooper Discoverer AT3 XLT
Best forMostly highway and city driving,
Towing
ProsHandling capability,
Slippery conditions traction
Low noise,
ConsLoose ground performance,
Open to bead cracking
VehicleLight trucks,
Full-size SUVs,
Jeeps
Available Sizes

15”, 16”, 17”, 18”, 20”

Made InUnited States
Warranty60,000 miles
3PMSFNo

Drawing on my experience as a former Bridgestone engineer, I see the Cooper Discoverer AT3 XLT as a tire that excels in wet, dry, and mild winter conditions. Its performance in these areas is truly commendable. However, its self-cleaning capabilities fall short, leading to challenges in mud, sand, and deep snow. Despite these limitations, the AT3 XLT impresses with its quietness and comfort, which is quite remarkable for a tire with such a rugged design.

On-Road Performance

The Cooper Discoverer AT3 XLT excels in on-road performance, striking a notable balance in various aspects.

Handling: With its robust sidewalls and a strong inner structure, this tire delivers outstanding responsiveness and cornering stability. Its highway-terrain-like tread, enhanced by Cooper’s Even Arc Technology, plays a key role here.

Wet Performance: The five-rib pattern excels in water evacuation, effectively preventing hydroplaning. Additionally, the multi-zigzag sipes in the tread blocks offer commendable wet traction and a reliable stopping distance.

Noise Level: Remarkably, the AT3 XLT is as quiet as a church mouse. This is due to its highway-inspired tread pattern and Whisper Groove Technology, which disrupts air noise within the tread. You’ll notice this in the shoulder slots.

Ride Comfort: The tire’s slightly narrower tread width not only optimizes the contact patch but also contributes to a more comfortable ride. Compared to more aggressively designed all-terrain tires like the BF Goodrich KO2 or Toyo Open Country AT3, its design is less rugged, enhancing comfort.

Appearance: Don’t be misled by its narrower profile; the AT3 XLT doesn’t look naive. In my view, its beefy and aggressive sidewalls give it a rugged appearance, rivaling even the most robust all-terrain tires.

Winter Performance

Despite lacking the 3PMSF (Three-Peak Mountain Snowflake) symbol that the Cooper Discoverer AT3 4S boasts, the AT3 XLT still delivers respectable ice and snow performance.

Mild Winter Conditions: The tire’s independent blocks and zigzag sipes are quite effective in mild winter conditions. What’s more, the aggressive shoulder blocks excel at ‘chewing’ through snow. The beefy upper sidewall also contributes significantly here, making the tire adept at handling light snow, deep snow, and slush.

Ice Performance: On ice, though, the AT3 XLT doesn’t quite hit the top marks. Its narrower tread pattern is a factor here. Lowering the air pressure in the tires might improve performance slightly, but overall, I’d rate it as decent, not outstanding, on icy surfaces.

Durability

Looks beefy and aggressive!

When I first delved into researching the Cooper Discoverer AT3 XLT, I stumbled upon a few mentions of cracking issues, which initially raised concerns about its durability.

Stone Ejection: One thing I can assert is that this tire does pick up small stones. It appears that Cooper’s Safe Guard Technology isn’t as effective with this model, possibly leading to cracks in the tread over time.

Sidewall Durability: However, the sidewalls are impressively beefy and show excellent resilience against external factors. This robust design significantly enhances the tire’s overall durability.

Heat Management: A point of consideration is the heat generation, particularly because the thickest part of the tire is the shoulder or sidewall. Excessive heat, often a byproduct of heavy or loaded usage, can be detrimental over time, especially after a year.

In conclusion, the Cooper Discoverer AT3 XLT is a highly durable tire. But when it comes to prolonged air-down usage, I’m somewhat reserved in endorsing it as the best option.

Tread Wear

The Cooper Discoverer AT3 XLT exhibits excellent wear characteristics, much as you’d expect from a tire with a highway-like and slightly narrower pattern.

Pattern Optimization: This type of pattern is inherently easier to optimize for even wear. The absence of a 3PMSF (Three-Peak Mountain Snowflake) rating implies a harder compound, which generally aids in uniform wear.

Tread Depth and Heat: However, the tire boasts a deep tread, varying from 16/32” to 17/32” depending on the size. The combination of small lugs, deep tread, and siped pattern can generate more motion and consequently, heat. From my experience, this means it tends to wear slightly quicker with air-down usage.

Durability in Gravel: While the lugs hold up well in gravel conditions, the bottom of the tread may suffer due to stone retention.

In summary, the Cooper Discoverer AT3 XLT wears quite well, aligning with its 60,000-mile tread wear warranty. It’s a testament to its well-engineered design and durability, even if there are some nuances to consider in specific conditions.

Off-Road Performance

While the Cooper Discoverer AT3 XLT is primarily an on-road all-terrain tire, it boasts a considerable void area, enhancing its off-road capabilities.

Gravel and Dirt Performance: In my experience, the AT3 XLT handles gravel and dirt with remarkable ease. However, on gravel, a bit of caution is advised, especially when turning, to maintain control.

Sand and Mud Challenges: As for sand or mud, the tire’s performance isn’t quite as impressive. This is mainly due to its limited evacuation capability. It’s serviceable for short trips on such terrains, but I wouldn’t recommend it for extreme off-road events like the Baja Race.

Price

In the tire market, prices fluctuate frequently, so I find it more practical not to focus on specific costs. Instead, I’ve thoroughly analyzed the top 10 most popular tire brands and their dealers, focusing on value and reliability.

DiscountTire:

  • The largest dealer in the US, established in 1960.
  • Operates over 1000 stores across 35 states – there’s likely one near you.
  • Offers free rotation and balancing.
  • 5% discount for DiscountTire cardholders on online purchases.
  • High ratings: the top online tire dealer on Consumer Affairs.
  • Stocks almost all brands, with delivery typically within 2-4 days – 30% faster than average when booked online.
  • Regular discounts and promotions.

Cooper Discoverer AT3 XLT: https://www.discounttire.com/buy-tires/cooper-discoverer-at3-xlt

TireRack:

  • Offers fast and free shipping, usually within a day.
  • A joint venture with DiscountTire, providing access to their installers and dealers.
  • Numerous installer options, including mobile installers in many areas – get your tires replaced while at work.
  • Detailed tire test results and comparisons on most product pages.
  • Impressive 4.6/5 rating on Google.

Cooper Discoverer AT3 XLT: https://www.tirerack.com/tires/cooper-discoverer-at3-xlt

SimpleTire:

  • Complimentary shipping, with a 2-day delivery time.
  • Verified shops nearby for mounting and balancing.
  • Mobile installation service available.
  • Serving over 7 million customers since 2021.
  • Excellent Google rating of 4.7/5.
  • Exceptional customer service, including a price match option.

Cooper Discoverer AT3 XLT: https://simpletire.com/brands/cooper-tires/discoverer-at3-xlt

In selecting dealers, I prioritize reliability. Each dealer on this list boasts 15-20 years of experience in online tire sales, ensuring a smooth and efficient tire purchasing experience.

Conclusion

Cooper Discoverer AT3 XLT strikes a fantastic balance, offering a quiet and comfortable ride along with respectable performance in wet conditions and light snow. For those who primarily use highways, I highly recommend this tire.

I hope you found this article insightful. If you have any further questions, feel free to drop them in the comments below. Safe travels, folks!

Best 285/70R17 All Terrain Tires

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The 285/70R17 tire size is undeniably popular, finding its place on large SUVs, Jeeps, and light trucks, including notable vehicles like the 2006-2010 Dodge Ram 2500 Power Wagon, 2021 Ford Bronco Badlands, 2018-2021 Jeep Wrangler Rubicon, 2004-2007 Nissan Titan, 2011-2021 RAM 2500 Power Wagon, and the 2009-2013 Toyota Tundra with the TRD Rock Warrior Package.

However, the challenge lies in the diverse expectations people have for this tire size. Some seek durability and off-road traction, while others prioritize daily driving comfort and light-duty off-road performance. To cater to these varying needs, these tires are available in different specifications and load ranges, ranging from SL, XL, C, D, to even E load range.

In this article, drawing from my experience as a former Bridgestone engineer, I’ll provide insights into this specific tire size and assist you in making informed decisions regarding the best tire and specification selection. Let’s dive in!

A Quick Look to Market

Toyo Open Country AT3
Toyo Open Country AT3
Toyo Open Country AT3
Falken Wildpeak AT3W
Falken Wildpeak AT3W
Falken Wildpeak AT3W
BF Goodrich KO2
BF Goodrich KO2
BF Goodrich KO3
General Grabber ATX
Nitto Recon Grappler AT
Nitto Recon Grappler AT
Kenda Klever AT2
Sumitomo Encounter AT
Sumitomo Encounter AT
Firestone Destination XT
Goodyear Wrangler Duratrac
Goodyear Wrangler Duratrac
Cooper Discoverer S/T Maxx
Firestone Destination AT2
Pirelli Scorpion All Terrain Plus
Nitto Nomad Grappler
Cooper Discoverer AT3 4S
Cooper Discoverer AT3 XLT
BF Goodrich Trail Terrain T/A
General Grabber APT
Yokohama Geolander AT G015
Yokohama Geolander AT G015
Hankook Dynapro AT2 Extreme
Cooper Discoverer Rugged Trek
Cooper Discoverer Rugged Trek
Nitto Ridge Grappler
Nitto Ridge Grappler
Nitto Ridge Grappler
Toyo Open Country R/T Trail
Toyo Open Country R/T Trail
Kenda Klever R/T
Category
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Off Road AT tire
Off Road AT Tire
Off Road AT Tire
Off Road AT Tire
Commercial AT Tire
Commercial AT Tire
Commercial AT Tire
On Road AT Tire
On Road AT Tire
On Road AT Tire
On Road AT Tire
On Road AT Tire
On Road AT Tire
On Road AT Tire
On Road AT Tire
On Road AT Tire
On Road AT Tire
Rugged Terrain Tire
Rugged Terrain Tire
Rugged Terrain Tire
Rugged Terrain Tire
Rugged Terrain Tire
Rugged Terrain Tire
Rugged Terrain Tire
Rugged Terrain Tire
Load Range
C
E
SL
C
E
SL
C
E
C
E
E
SL
E
E
SL
E
D
E
E
SL
D
SL
SL
E
SL
SL
E
SL
E
E
SL
C
E
SL
E
C
E
Weight
54 lbs
55 lbs
47 lbs
63 lbs
58 lbs
50 lbs
51 lbs
58 lbs
56 lbs
59 lbs
54 lbs
48 lbs
56 lbs
60 lbs
52 lbs
51 lbs
51 lbs
60 lbs
62 lbs
41 lbs
55 lbs
45 lbs
43 lbs
55 lbs
46 lbs
46 lbs
54 lbs
45 lbs
61 lbs
57 lbs
48 lbs
55 lbs
55 lbs
48 lbs
57 lbs
56 lbs
56 lbs
Tread Depth
16.5/32″
16.5/32″
13.6/32″
18/32″
18/32″
13/32″
15/32″
15/32″
15/32″
16/32″
16/32″
13.6/32″
14.87/32”
18/32″
13/32″
16/32″
18″
18”
18.5/32″
12/32″
15/32″
13.4/32″
14/32″
17/32″
12.5/32″
14/32″
18/32″
13/32″
15.5/32″
18.5/32″
16/32″
16.4/32″
16.4/32″
13.5/32″
16.5/32″
16.5/32″
16.3/32”
Tread Width
9″
9″
9″
9.6″
9.6″
9.6″
9.3″
9.2″
Add New
9″
9.1″
9.2″
Add New
9.6″
9.6″
8.8″
9.5″
9.2″
9.2″
9.2″
9.3″
9.1″
9.2″
9.2″
9.1″
9.2″
8.9″
8.5″
8.9″
9.4″
9.4″
8.9″
8.9″
8.9″
–
–
Add New
Made In
United States
United States
Japan
Thailand
China
Thailand
United States
United States
United States
United States
United States
United States
Taiwan
Thailand
Thailand
Canada
United States
United States
United States
Costa Rica
Brazil
United States
United States
United States
United States
United States
Thailand
Thailand
China
United States
United States
United States
United States
United States
United States
United States
Taiwan

When selecting tires in the 285/70R17 size, it’s essential to consider your vehicle’s load range requirements. Different vehicles have varying load range recommendations, and not following these requirements can lead to issues such as reduced tire lifespan, stability problems, and cupping.

For instance, vehicles like the Jeep Rubicon or Nissan Titan can comfortably handle SL or C load range tires. These are suitable for daily driving and light off-road adventures. On the other hand, heavier vehicles like the Tundra or Ram 2500 require at least a D load range, especially if you plan on engaging in severe off-roading, towing, or hauling.

Load Range
Vehicle Type
Recommended Tire Range
SL
Jeeps, Light Trucks
Daily Driving, Light Off-Road
C
Light Trucks
Daily Driving, Light Off-Road
D
Trucks, SUVs, Heavy Load
Severe Off-Roading, Towing
E
Heavy Trucks, Towing Vehicles
Towing, Hauling, Off-Road

Before making your tire selection, it’s highly advisable to double-check your vehicle’s load range requirements: https://www.discounttire.com/#/fitment/vehicle

Goodyear Wrangler Duratrac - D Load Range

The Goodyear Wrangler Duratrac was initially designed as a commercial all-terrain tire. However, its remarkable appearance and excellent performance in snowy conditions have led people to use this tire for daily driving purposes as well. As a result, finding a D load range Wrangler Duratrac in stock can be quite a challenge. Nevertheless, if you manage to secure one, you won’t be blamed for opting for this tire, even if you’re more of a “mall crawler” than an off-road enthusiast.

Self-cleaning capability of Goodyear Wrangler Duratrac is hugeeee!
Goodyear Wrangler Duratrac
Commercial AT Tire
D
51 lbs
18/32”
9.6″
United States

The Goodyear Wrangler Duratrac stands out as an excellent tire for loose terrain, including mud, snow, and slush. Unlike its E load range counterpart, this tire is marked with the 3PMSF symbol, guaranteeing its winter performance. Moreover, being in the D load range ensures a smooth and comfortable ride.

While the deep and cavitated tread may introduce some noise, the center section design effectively disrupts air circulation, helping to mitigate noise levels. Furthermore, the wider tread pattern of the D load range significantly enhances wet performance compared to the E load range.

In summary, the Goodyear Wrangler Duratrac is a top choice if you seek to combine daily driving with severe off-roading adventures. Its stability at high speeds may be a minor drawback, although it might not be a critical concern for most users.

BF Goodrich KO2 - Load Range C

The BF Goodrich KO2 is undoubtedly a legendary off-road all-terrain tire that has maintained its leading position since 2015. For those looking to strike a balance between daily driving requirements and moderate off-road performance, I recommend considering the C-load range option.

However, it’s important to note that owners of Toyota Tundra and RAM 2500 vehicles should opt for at least the D load range, so the C range option may not be suitable for their needs.

BFG KO2 looks extremly good on Jeep!
BF Goodrich KO2
Off Road AT Tire
C
51 lbs
15/32″
9.3″
United States

BF Goodrich KO2(review) is truly an all-around tire capable of handling both on and off-road conditions with ease. Its tread design, while slightly more aggressive than other off-road all-terrain tires, grants it superior off-road performance. However, it may encounter some challenges on wet surfaces due to its aggressiveness.

On the bright side, the tire’s well-optimized tread depth ensures a quiet and smooth ride. Furthermore, its significant aggressiveness translates to excellent snow performance. While it can still be used on heavier vehicles, it’s worth noting that its longevity may not match that of the E load range variant.

Toyo Open Country AT3 - Load Range E

The Toyo Open Country AT3 is another off-road all-terrain tire that I may recommend, particularly for towing and hauling applications. While its pattern isn’t as aggressive as the BF Goodrich KO2, its compact design enables even wear and maintains decent on-road manners at the same time.

A closer look to Toyo Open Country AT3. Sipes works perfectly on light snow conditions
Toyo Open Country AT3
Off Road AT Tire
E
55 lbs
16.5/32″
9″
United States

Toyo Open Country AT3(review) emerges as a great option, especially if you don’t frequently find yourself in muddy situations. While it can handle light mud, it occasionally faces self-cleaning challenges when dealing with more challenging terrain. Therefore, if you spend a significant amount of time on the road, this tire is an excellent choice.

It’s important to note that this tire may exhibit slight noise and occasional roughness if the correct PSI (tire pressure) isn’t maintained. While it provides exceptional traction for heavier vehicles, Jeep and large SUV owners might experience a lack of traction on wet surfaces.

Nitto Ridge Grappler - Load Range E

The Nitto Ridge Grappler is a rugged-terrain tire designed to prioritize on-road comfort. It distinguishes itself from competitors by not having the 3PMSF marking, which can result in a slight lack of traction on cold weather surfaces. For this reason, I recommend this tire for larger vehicles where the traction issue is less prominent.

Good-looking Nitto Ridge Grappler!
Nitto Ridge Grappler
Rugged Terrain Tire
E
55 lbs
16.4/32″
8.9″
United States

Nitto Ridge Grappler(review) stands out as one of the best-looking tires on the market. While it’s generally narrower than competitors, this isn’t the case for this specific size. Its center section features substantial lugs that greatly enhance tire stability, making it an excellent choice for towing or hauling purposes.

Additionally, the increased compound in the center contributes to commendable wet and light snow performance and, more importantly, a smooth and quiet ride. However, there may be instances where the tire spins on wet surfaces in cold weather, especially on hills, if the tire isn’t sufficiently warmed up due to the lack of the 3PMSF marking.

On the flip side, the aggressive pattern of the Nitto Ridge Grappler works exceptionally well in off-road conditions, and the non-3PMSF compound offers impressive wear characteristics.

Cooper Discoverer AT3 XLT - Load Range E

The Cooper Discoverer AT3 XLT is an on-road all-terrain tire that prioritizes on-road manners over off-road performance. It serves as the beefed-up version of the Cooper Discoverer AT3 4S and is an excellent choice for those who require a tire with enhanced capabilities for towing and hauling purposes.

Cooper Discoverer AT3 XLT has good looking sidewall
Cooper Discoverer AT3 XLT
On Road AT Tire
E
55 lbs
17/32″
9.2″
United States

The Cooper Discoverer AT3 XLT emerges as an excellent heavy-duty truck tire, with its availability limited to the E-load range. While it excels in providing on-road stability thanks to its highway tread pattern, it falls behind the competition on loose ground such as slush or thick mud. Therefore, if your plans involve severe off-roading, it’s advisable to explore other options.

On the flip side, this tire’s ability to put a substantial amount of tread on the ground translates to outstanding wet performance and reduced noise production. I highly recommend this tire if you prioritize excellent on-road manners and year-round performance.

Cooper Discoverer AT3 4S - Load Range SL

Cooper Discoverer AT3 4S is one of the best options in the market if you mostly drive on the highways. As an on-road all-terrain tire, this tire is only available on p-metric sizes which means it’s not that capable for off-roading.

Great option for SUVs and highway driving focused Jeeps
Cooper Discoverer AT3 4S
On Road AT Tire
SL
43 lbs
14/32″
9.2″
United States

The Cooper Discoverer AT3 4S lives up to its name by offering a 4-season performance. While it may not be suitable for heavy-duty 2500 series trucks or the Toyota Tundra, it stands out as an excellent choice for mall crawlers seeking an optimal tire for on-road conditions.

This tire excels in providing excellent traction on wet and light snow surfaces, thanks to its siped and highway-like tread pattern. However, it’s worth noting that its performance might lag behind in deep snow and thick mud conditions.

Toyo Open Country R/T Trail - Load Range C

The Toyo Open Country R/T Trail proves to be a great option for those looking to inject some aggressiveness into their vehicle’s appearance. While it may not boast the best on-road manners, it truly shines in terms of loose ground traction capability, making it a compelling choice for off-road enthusiasts.

Designed with precision! Large with expertly oriented lugs, expect a smooth, silent ride every time
Toyo Open Country R/T Trail
Rugged Terrain Tire
C
56 lbs
16.5/32″
‘-
United States

Toyo Open Country R/T Trail(review) stands out as the best year-round option among rugged terrain tires. While it may not match the fuel efficiency of the Toyo Open Country AT3, it compensates with a more aggressive appearance and superior mud evacuation capabilities. It’s important to note that this tire might offer a slightly rougher ride and a shorter lifespan compared to off-road all-terrain tires. However, its wet and winter handling capability exceeds the competition among rugged terrain tires.

Conclusion

The 285/70R17 tire size offers popular options that cater to a variety of needs. For those seeking superior on-road manners, C and SL load range tires are a better fit, while those requiring severe off-road durability should consider E load range options. It’s essential to keep in mind that while C load range and SL load range tires have similar load-carrying capabilities, they may not be sufficient for 2500 series and Tundra trucks.

I didn’t these tires in my article but if you need affordable options:

I hope this article has been informative and assists you in making the right tire choice. If you have any further questions or need additional support, please don’t hesitate to leave a comment below. Safe travels, everyone!

Best 35×12.50r20 All Terrain Tires

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Nowadays, the 35×12.5R20 tire size has gained immense popularity among truck owners, primarily for its off-road capabilities and aggressive appearance. While transitioning from LT (Light Truck) tires to flotation tires may have some impact on gas mileage and ride comfort, the trade-offs are well justified by the durability and striking appearance these tires offer. With the right tire selection, you can maximize the advantages of this tire size. Drawing from my experience as a former Bridgestone engineer, I’m here to share my top recommendations for this specific tire size and help you find the best tires to suit your needs. Let’s get started!

35x12.50R20 Tires Market Overview

Falken Wildpeak AT3W
Toyo Open Country AT3
Toyo Open Country AT3
BF Goodrich KO2
Sumitomo Encounter AT
General Grabber ATX
Firestone Destination XT
Nitto Recon Grappler AT
Cooper Discoverer AT3 XLT
Yokohama Geolander AT G015
Hankook Dynapro AT2 Extreme
Hankook Dynapro AT2 Extreme
Kumho Road Venture AT52
Cooper Discoverer Rugged Trek
Nitto Ridge Grappler
Yokohama Geolander X-AT
Yokohama Geolander X-AT
Toyo Open Country R/T Trail
Mickey Thompson Baja Boss AT
Mickey Thompson Baja Legend Exp
Kenda Klever RT
Category
Off-Road AT Tire
Off-Road AT Tire
Off-Road AT Tire
Off-Road AT Tire
Off-Road AT Tire
Off-Road AT Tire
Off-Road AT Tire
Off-Road AT Tire
On-Road AT Tire
On-Road AT Tire
On-Road AT Tire
On-Road AT Tire
On-Road AT Tire
On-Road AT Tire
Rugged Terrain Tire
Rugged Terrain Tire
Rugged Terrain Tire
Rugged Terrain Tire
Rugged-Terrain Tire
Rugged-Terrain Tire
Rugged-Terrain Tire
Load Range
F
F
E
E
E
E
E
F
F
E
F
E
E
F
F
E
F
F
F
F
F
Weight
77 lbs
67 lbs
67 lbs
67 lbs
75 lbs
70 lbs
59 lbs
68 lbs
67 lbs
59 lbs
65 lbs
73 lbs
66 lbs
69 lbs
68 lbs
71 lbs
70 lbs
69 lbs
72 lbs
62 lbs
68 lbs
Tread Depth
19/32″
16.9/32″
16.9/32″
15/32″
19/32″
16/32″
17/32″
16.9/32″
16.5/32″
16/32″
15.5/32″
14.5/32″
16/32″
18.5/32″
18.3/32″
19/32″
–
16.9
18.5/32″
Add New
18.8/32”
Tread Width
10.9″
10.5″
10.3″
11.1″
11″
10.6″
10.8″
10.5″
10.8″
9.8″
–
10.1″
10.2″
11″
10.2″
10″
–
–
10.3″
10.2
10”
Made In
Thailand
United States
United States
United States
Thailand
United States
Canada
United States
United States
Phillippines
Korea
Korea
Vietnam
United States
United States
Japan
Japan
United States
United States
United States
Taiwan

Before we dive into the specifics, I’d like to share a table that I believe will be immensely helpful for most readers. This table provides an overview of the specifications of all-terrain and rugged-terrain tires currently available in the market.

According to this table:

  • The lightest tire is the Firestone Destination XT in the E Load Range category.
  • The tallest tires are the Falken Wildpeak AT3W and the Yokohama Geolander X-AT.
  • The broadest tires are the BF Goodrich KO2 and the Cooper Discoverer Rugged Trek.

It’s worth noting that I’ve excluded mud terrain tires from this article because they differ significantly from all-terrain tires. Instead, I’ve focused on rugged-terrain tires, which strike a more balanced approach for on-road performance.

Firestone Destination X/T - Lightest of Its Segment

The Firestone Destination X/T is indeed an all-terrain tire that’s specifically designed for 3/4-ton or above pickup trucks. Being the lightest in its segment, it brings both advantages and disadvantages worth considering.

Firestone Destination XT
Firestone Destination XT
Off Road AT Tire
E
59 lbs
17/32″
10.8″
Canada

The Firestone Destination X/T is an excellent choice if you’re seeking value for your money. It boasts a nearly $30 cost advantage over its competitors, making it a budget-friendly option. Additionally, thanks to its lightweight design, it stands out as a solid choice for those who prioritize fuel efficiency. However, it’s essential to be aware of some trade-offs. The center lugs of this tire feature full-depth sipes, which can increase rolling resistance and impact traction on wet and light snow-covered surfaces. As a result, it may provide a somewhat rougher ride, particularly due to its deep tread design. Yet, this feature also provides good level of loose ground traction.

Note: It’s important to keep in mind that the Firestone Destination X/T is exclusively available in the E load range. If your off-roading needs are severe, I’d recommend considering alternative options for a more suitable fit.

Cooper Discoverer AT3 XLT - Best for Towing

The Cooper Discoverer AT3 XLT stands out as the sole on-road all-terrain tire I’m recommending in this article. With its highway-type pattern, it delivers exceptional stability on the road. However, it’s important to note that this feature also comes with its own set of drawbacks.

Expect mud, Cooper Discoverer AT3 XLT is also great option for off-road performance
Cooper Discoverer AT3 XLT
On Road AT Tire
F
67 lbs
16.5/32″
10.6″
United States

The Cooper Discoverer AT3 XLT provides one of the smoothest and quietest ride experiences, as expected from an on-road all-terrain tire. Its highway rib pattern excels at absorbing bumps and reducing noise levels. Moreover, the increased rubber contact with the road surface enhances its wet traction capability. However, it’s essential to acknowledge that this tire has its limitations, particularly in loose ground performance, which includes deep snow and mud. It’s worth noting that the absence of the 3PMSF marking affects its winter performance. On the flip side, this non-3PMSF compound contributes to a longer tread life and improved on-road stability.

BF Goodrich KO2 - Best Overall

BF Goodrich KO2 is the ancestor of all-terrain tires. Well, it’s always a safe side pick for me because of the great tread width and tread depth ratios. Since it’s only available in E load range for this specific size, it also offer smoother ride.

BFG KO2 looks extremly good on Jeep!
BF Goodrich KO2
Off Road AT Tire
E
67 lbs
15/32″
11.1″
United States

While the BF Goodrich KO2 may not claim the title for the tallest tire in its segment, its high void ratio makes it a standout performer in loose-ground conditions. Additionally, despite being available in the E load range, its Trigard technology ensures exceptional sidewall durability, making it well-suited for severe off-roading adventures. The low tread depth of the BF Goodrich KO2 is a notable feature that reduces vibration levels and promotes even tire wear. However, it’s important to be aware of one drawback—towards the later stages of its life, this tire may experience a decrease in wet traction.

Toyo Open Country R/T Trail - Smooth Rugged Terrain Tire

Toyo Open Country R/T Trail is the newly released rugged-terrain tire of Toyo. Even though its rating and specification is similar to Toyo Open Country AT3, I prefer a more aggressive design for this specific size. For this reason, I added this tire to my list instead of the Toyo AT3.

Designed with precision! Large with expertly oriented lugs, expect a smooth, silent ride every time
Toyo Open Country AT3 Toyo Open Country R/T Trail
Off Road AT Tire Rugged Terrain Tire
F F
67 lbs 69 lbs
16.9/32″ 16.9
10.3″ 10.2″
United States United States

The Toyo Open Country R/T Trail presents an excellent choice if you’re looking to enhance your vehicle’s appearance without compromising on tread life. With its substantial and interlocked lugs, this tire offers a commendable level of on-road stability, making it particularly suitable for towing and hauling. However, it’s important to note that this tire features a slightly softer compound to ensure adequate snow and wet traction. As a trade-off, you may experience a somewhat shorter lifespan. To address this, Toyo provides a 45,000-mile tread warranty for this product, whereas the Toyo AT3 comes with a 65,000-mile warranty. If tread life is your top priority, you may lean towards the Toyo Open Country AT3(vs Toyo Open Country RT Trail).

Nitto Ridge Grappler - Best Appearance

Nitto Ridge Grappler might not be the broadest tire but it’s one of the tallest tires of this segment. Since it’s a rugged terrain tire, it looks highly aggressive. However, the real shining point of this tire is on-road manners.

Nitto Ridge Grappler looks doooopeeee!
Nitto Ridge Grappler
Rugged Terrain Tire
F
68 lbs
18.3/32″
10.2″
United States

The Nitto Ridge Grappler‘s symmetrical and narrow pattern offers several advantages, including noise reduction and enhanced riding comfort. The variable pitch design plays a role in breaking the airflow inside the tire, which effectively decreases the noise level. Additionally, the narrow pattern contributes to even load distribution, ultimately extending the tire’s tread life. However, it’s worth noting that this tire has a limited amount of siping. When you combine this with a non-3PMSF compound and a narrow tread width, you may anticipate a slight decrease in wet and light snow traction.

Kenda Klever R/T - Best Affordable Tire

The Kenda Klever R/T stands out as a highly recommended rugged (hybrid) terrain tire designed to cater to light trucks, SUVs, and 4×4 vehicles, including Jeeps. With its wide product range, the Kenda Klever R/T has become a popular choice among many. However, it’s important to note that not all users are equally satisfied with its performance.

Kenda Klever R/T Is compact and symmetrical design makes it last longer
Kenda Klever RT
Rugged Terrain Tire
F
68 lbs
18.8/32”
10”
Taiwan

The Kenda Klever R/T is a reliable tire that performs well on both wet and dry surfaces. It offers a comfortable ride, albeit with some noise. Notably, despite lacking the 3PMSF designation, it delivers decent winter performance in various conditions, though it may struggle on ice. One of its standout features is the 3-ply sidewalls, which contribute to its substantial off-road capability, especially for activities like rock crawling. While its tread life falls slightly short compared to all-terrain tires, it still outperforms most rugged-terrain tires in this regard.

What is Equivalent to a 35x12.50R20?

In fact, there is no direct equivalent to 35×12.50R20 tires. However, the closest LT (Light Truck) metric tire size is 315/60R20.

How to Decode 35x12.5R20 Tire Size in Metric?

Understanding a flotation size is a bit different from LT and P-metric sizes. In LT and P-metric sizes, the first three-digit number defines the width of the tire in millimeters, measured sidewall to sidewall. However, in flotation sizes like 35×12.50R20, the middle number (12.50 in this case) represents the width of the tire, but this time in inches.

The 35” figure corresponds to the overall diameter of your tire. To determine the sidewall height, you should subtract the rim diameter, which is 20” in our case. So, currently, we have 20” as the total height of both sidewalls (imagine a circle with a smaller circle inside, with one sidewall height on top and one below). Therefore, you need to divide this by two. Right now, you have 10” for one sidewall height, which is equivalent to 190mm. Interestingly, this is the same sidewall height as that of a 315/60R20 tire.

Conclusion

When considering 35×12.50R20 tires for upsizing, it’s crucial to have a clear understanding of what to expect from these tires. Here are a couple of tips to help you make an informed choice:

  • If daily driving is your top priority, opting for the E load range is the better choice. To ensure this, you can select one of the on-road all-terrain tires.

  • However, if you’re willing to sacrifice some on-road manners in favor of off-road capability, rugged terrain tires may be the way to go.

  • Keep in mind that the lightest tire doesn’t always equate to better fuel efficiency. Pay attention to the tire’s design and tread depth as well.

  • If you have a lifted 1/2 ton truck, you might find this article helpful: Best 1/2 Ton Truck Tires.

  • For those with a 3/4 ton truck, it’s highly recommended to check out this article: Best 3/4 Ton Truck Tires.

I hope this article proves to be a valuable resource for your tire selection process. If you require further assistance, please don’t hesitate to leave a comment below.

Toyo Open Country AT3 vs Cooper Discoverer AT3

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Cooper Discoverer AT3 and Toyo Open Country AT3 are versatile all-terrain tires suitable for a range of vehicles, including pickup trucks, SUVs, and Jeeps, offering a balanced performance on and off the road. Toyo Open Country AT3 provides versatility through different specifications, while Cooper Discoverer AT3 comes in three variations: 4S, XL, and XLT, each catering to specific needs. Cooper Discoverer AT3 is ideal for on-road comfort with off-road capabilities for light to moderate terrain, while the XLT and LT versions are built for tougher off-road challenges. This article will compare these tires, helping you choose the right one for your vehicle and driving conditions. Let’s begin.

Toyo Open Country AT3 boasts an aggressive lug-type pattern, positioning it on the aggressive end of this comparison

Quick Summary

Toyo Open Country AT3Cooper Discoverer AT3 4SCooper Discoverer AT3 LTCooper Discoverer AT3 XLT
Better forSevere off-road usage,
Winter performance		Daily driving1/2 ton or compact SUV owners who wants to add a little towing and hauling capability3/4 ton pickup owners who don’t see snow often
ProsAppearance,
year-round performance		Insane wet and snow traction
Great on-road manners		Towing & hauling capabilityLongevity
Cornering stability
ConsA bit rough rideCan’t handle severe off-road conditionsCan’t handle severe off-road conditionsCan’t handle severe off-road conditions

Based on your perspective as a former Bridgestone engineer, it’s clear that the Toyo Open Country AT3 is your preferred choice for severe off-road usage, given its robust off-road capabilities. However, you acknowledge that its on-road manners are slightly inferior to the Cooper Discoverer AT3 4S.

In contrast, the Cooper Discoverer AT3 4S stands out with better on-road manners, responsiveness, and even wear characteristics. It seems like a solid choice for daily driving and varied conditions.

The Cooper Discoverer AT3 LT offers similar attributes to the 4S but with stronger sidewalls and robust shoulders, making it a suitable option for 1/2-ton pickups and full-size SUVs that require hauling, towing, and mild off-road performance.

Finally, the Cooper Discoverer AT3 XLT is your recommendation for warm climates and heavy-duty vehicles, offering excellent tread life for these applications.

All-Terrain Tires Cheat Sheet

Finding the ideal all-terrain tire among the plethora of options available can be overwhelming. But don’t worry, my team and I have taken on this challenge head-on. Besides our hands-on experiences with these tires, we also analyze thousands of customer reviews and test reports. 

Please note that: Light-Duty is 1500 series, Medium-Duty is 2500 series and Heavy-Duty is 3500 series. If you do towing or hauling, I recommend considering at least Medium-Duty tires.

Mobile users can scroll the table to the left to see the whole data.

All-Terrain Tires Cheat Sheet
NameCategoryArticles3PMSFRoad NoiseMileageFuel EconomyRiding ComfortResponsivenessWet PerformanceMild WinterSevere WinterMild Off-RoadSevere Off-RoadBest Fit by Pickup Truck ClassificationWarranty (SL or XL)Warranty (LT)Product Page

Falken Wildpeak AT3W

Off Road All Terrain TireReviewYesDecentDecentPoorDecentDecentDecentElegantElegantDecentAverageLight-Duty55,000 Miles55,000 MilesWildpeak AT3W
Toyo Open Country AT3Off Road All Terrain TireReviewYesAverageElegantDecentDecentDecentDecentElegantDecentElegantDecentMedium-Duty65,000 Miles50,000 MilesToyo Open Country AT3
General Grabber ATXOff Road All Terrain TireReviewYesAverageDecentDecentDecentDecentDecentDecentDecentElegantElegantHeavy-Duty60,000 Miles50,000 MilesGeneral Grabber ATX
BF Goodrich KO2Off Road All Terrain TireReviewYesDecentDecentDecentDecentElegantDecentDecentDecentElegantElegantHeavy-DutyN/A50,000 MilesBF Goodrich All-Terrain T/A KO2
Sumitomo Encounter ATOff Road All Terrain TireReviewYesDecentDecentAverageDecentDecentDecentElegantAverageDecentAverageLight-Duty60,000 Miles60,000 MilesSumitomo Encounter AT
Firestone Destination XTOff Road All Terrain TireReviewYesAverageDecentElegantDecentElegantDecentDecentAverageDecentDecentHeavy-DutyN/A50,000 MilesFirestone Destination X/T
Cooper Discoverer AT3 XLTOn Road All Terrain TireReviewNoDecentDecentDecentDecentElegantDecentDecentAverageElegantAverageHeavy-DutyN/A60,000 MilesCooper Discoverer AT3 XLT
Falken Wildpeak AT TrailOn Road All Terrain TireReviewYesDecentDecentDecentDecentDecentElegantDecentDecentElegantAverageLight-Duty65,000 MilesN/AFalken Wildpeak AT Trail
Cooper Discoverer AT3 4SOn Road All Terrain TireReviewYesElegantDecentElegantElegantElegantElegantElegantDecentDecentFairy WellLight-Duty65,000 MilesN/ACooper Discoverer AT3 4S
Firestone Destination AT2On Road All Terrain TireReviewYesDecentElegantElegantElegantElegantDecentElegantAverageDecentAverageLight-Duty55,000 MilesN/AFirestone Destination AT2

BF Goodrich Trail Terrain T/A

On Road All Terrain TireReviewYesElegantElegantDecentElegantElegantDecentDecentAverageDecentAverageLight-Duty60,000N/ABF Goodrich Trail Terrain T/A
Toyo Open Country R/T TrailRugged Terrain TireReviewYesDecentDecentDecentDecentDecentDecentDecentDecentElegantDecentHeavy-Duty45,000 Miles45,000 MilesToyo Open Country R/T Trail
Falken Wildpeak R/TRugged Terrain TireReviewNoDecentDecentAverageAverageDecentDecentDecentDecentElegantDecentHeavy-Duty50,000 Miles50,000 MilesFalken Wildpeak R/T
Pathfinder AT TireOn Road All Terrain TireReviewYesAverageAverageDecentDecentDecentDecentDecentAverageDecentAverageLight-Duty55,00050,000Discount Tire Exclusive Product
Nitto Ridge GrapplerRugged Terrain TireReviewNoDecentDecentDecentElegantDecentDecentDecentDecentElegantDecentHeavy-DutyN/AN/ANitto Ridge Grappler
General Grabber APTOn Road All Terrain TireReviewYesDecentDecentAverageDecentDecentDecentDecentAverageDecentFairy WellMedium-Duty60,000 Miles60,000 MilesGeneral Grabber APT
Vredestein Pinza ATOn Road All Terrain TireReviewYesElegantDecentDecentElegantDecentDecentDecentDecentDecentAverageMedium-Duty70,000 Miles50,000 MilesVredestein Pinza AT
Nitto Recon GrapplerOff Road All Terrain TireReviewNoDecentDecentDecentDecentDecentDecentDecentAverageElegantDecentMedium-Duty65,000 Miles55,000 MilesNitto Recon Grappler
Michelin Defender LTX M/SHighway TireReviewNoElegantElegantElegantDecentElegantDecentDecentFairy WellDecentFairy WellHeavy-Duty55,000 – 70,000 Miles55,000 – 70,000 MilesMichelin Defender LTX M/S
Kenda Klever R/TRugged Terrain TireReviewNoAverageDecentAverageDecentDecentDecentDecentFairy WellDecentDecentHeavy-DutyN/AN/AKenda Klever R/T
Goodyear Wrangler Territory ATOn Road All Terrain TireReviewNoDecentDecentDecentDecentDecentDecentDecentAverageElegantDecentMedium-DutyN/AN/AGoodyear Wrangler Territory AT
Goodyear Wrangler UltraTerrain ATOff Road All Terrain TireReviewYesDecentDecentDecentDecentDecentDecentDecentAverageDecentFairy WellMedium-DutyN/AN/ADiscount Tire Exclusive Product
Continental Terrain Contact H/THighway TireReviewNoElegantElegantElegantElegantElegantDecentAveragePoorDecentPoorHeavy-Duty70,000 Miles60,000 MilesContinental TerrainContact H/T
Patriot R/TRugged Terrain TireReviewYesAverageAverageAverageDecentDecentDecentDecentDecentDecentDecentMedium-DutyN/AN/APatriot R/T+
Kenda Klever AT2Off Road All Terrain TireReviewYesDecentAverageAverageDecentDecentDecentDecentAverageDecentAverageMedium-Duty60,000 Miles50,000 MilesKenda Klever AT2
Yokohama Geolander AT G015On Road All Terrain TireReviewYesElegantDecentAverageElegantElegantDecentDecentAverageAveragePoorLight-Duty60,000 Miles50,000 MilesYokohama Geolandar AT G015
Mickey Thompson Baja Boss ATRugged Terrain TireReviewYes (315 or narrower width)DecentDecentAverageDecentElegantDecentDecentDecentElegantDecentMedium-Duty50,000 Miles60,000 MilesMickey Thompson Baja Boss AT

Table of Contents

Dry Performance

Dry performance encompasses three key dimensions: dry traction, steering response, and cornering stability. In the following sections, each of these aspects will be individually assessed for a comprehensive understanding.

Dry Traction

Dry traction hinges on the contact patch between the tire and the road surface. Some mud tires may exhibit subpar dry traction due to their design, which prioritizes off-road performance.

In contrast, all-terrain tires aim to strike a balance between on and off-road capabilities, resulting in a narrower and more compact design. This design approach allows all-terrain tires to deliver a commendable level of dry traction.

In essence, while dry traction is an important factor, it’s not a defining characteristic for these tires. All-terrain tires, including both models in question, generally provide excellent dry traction.

Cornering Stability

Let’s start by discussing cornering stability, as it’s a crucial aspect that influenced the classification of the Cooper Discoverer AT3 series.

Cornering stability is closely tied to a tire’s internal structure, which can vary based on your vehicle and driving conditions.

First, let’s consider the Cooper Discoverer AT3 4S. This tire prioritizes a smooth and quiet ride over extreme off-road traction and durability. It’s available in p-metric sizes and provides decent cornering stability, especially for vehicles like 1/2 ton pickups and similarly weighted SUVs and CUVs. However, in terms of cornering stability, the Toyo Open Country AT3 with its more robust design is a better choice.

Next up is the Cooper Discoverer AT3 LT. This tire represents a middle-ground option in this comparison. It features a slightly beefier sidewall and thicker construction. It’s well-suited for compact SUVs and 1/2 ton trucks that require towing or hauling capabilities. The Cooper Discoverer AT3 XL comes closest to the Toyo Open Country AT3 in terms of cornering stability.

Lastly, let’s discuss the Cooper Discoverer AT3 XLT, the most rugged option in the series. Its construction is even tougher than that of the Toyo Open Country AT3, making it a suitable choice for heavy-duty applications.

In summary, when it comes to cornering stability, the Toyo Open Country AT3 is a solid option for a wide range of vehicles. For owners of 3/4 ton or larger pickup trucks, the Cooper Discoverer AT3 XLT is recommended, while SUV and CUV owners can opt for the Cooper Discoverer AT3 4S. 1/2 ton pickup owners may find the Toyo Open Country AT3 to be a suitable choice.

Steering Response

Steering response is closely tied to cornering stability, and maintaining tire shape is crucial for responsive handling. However, the tread pattern plays a significant role in determining steering responsiveness.

In terms of responsiveness, all variants of the Cooper Discoverer AT3 (4S, XL, and XLT) outperform the Toyo Open Country AT3 due to their rib-highway type pattern design.

It’s worth noting that for heavier vehicles, such as trucks, a stiff compound is also necessary for quicker steering response, in addition to strong sidewalls.

Considering these factors, the Cooper Discoverer AT3 4S is a better choice for CUV and compact SUV owners seeking responsive handling. For owners of 3/4 ton or larger pickup trucks, the Cooper Discoverer AT3 XLT is a solid option. While the Toyo Open Country AT3 remains a decent choice due to its interlocked center section, the Cooper Discoverer AT3 variants offer better steering response in their respective categories.

Wet Performance

Wet performance in all-terrain tires depends on two critical factors: wet traction and hydroplaning resistance.

Hydroplaning can sometimes be a concern for all-terrain tires due to their wide tread patterns. However, effective water evacuation capability plays a significant role in overcoming this issue.

The Cooper Discoverer AT3 series (4S, XLT, and XL) with their 5-rib symmetrical patterns and circumferential grooves offer decent hydroplaning resistance. In contrast, the Toyo Open Country AT3, while lacking rib-type patterns, features two circumferential grooves and increased lateral grooves for efficient water evacuation.

Overall, all these tires provide a decent level of hydroplaning resistance.

When it comes to wet traction, factors like soft rubber compounds and a higher density of siping edges are key.

The Cooper Discoverer AT3 4S stands out for compact SUVs and CUVs due to its softer compound, ample rubber contact with the road, and high siping density. The Toyo Open Country AT3 shares similar features but has a slightly stiffer compound, putting its wet performance just behind the Cooper Discoverer AT3 4S.

For 1/2 ton pickup trucks and full-size SUVs involved in towing or hauling, the Cooper Discoverer AT3 LT offers a slightly better option due to its responsiveness.

However, the Cooper Discoverer AT3 XLT sets itself apart, lacking the 3PMSF (Three-Peak Mountain Snowflake) rating but excelling in use with 3/4 ton or larger vehicles under heavy loads. Its cold weather wet traction during towing or hauling is commendable. Still, if you frequently encounter cold weather conditions, the Toyo Open Country AT3 is a better choice.

Winter Performance

Winter performance of all-terrain tires can be assessed under three distinct conditions.

Starting with light snow, both the Cooper Discoverer AT3 4S and the Toyo Open Country AT3 bear the 3PMSF marking, signifying their proficiency in light snow traction. In this category, the Toyo Open Country AT3 and Cooper Discoverer AT3 4S excel, thanks to their abundance of biting edges. Conversely, the Cooper Discoverer AT3 LT and Cooper Discoverer XLT, with their stiffer compounds, lag slightly behind.

Moving on to deep snow, the Toyo Open Country AT3 takes the lead due to its more aggressive tread pattern. However, all variations of the Cooper Discoverer AT3 series are reliable options when selected based on the provided guidelines.

When it comes to icy conditions, it’s important to note that these tires are not dedicated winter tires and have limited ice performance. Nevertheless, the rib-type pattern on the Cooper Discoverer AT3 4S and Cooper Discoverer AT3 XL provides a slight advantage by putting more rubber compound on the ground.

Overall, the Cooper Discoverer AT3 4S is a better choice for compact SUVs and CUVs, while the Toyo Open Country AT3 shines as the superior option for pickup trucks and full-size SUVs in winter conditions.

A side note here: Understanding the snow performance of all-terrain tires can be quite challenging. For those who find it perplexing, I’d like to direct your attention to a helpful resource: “6 Best All-Terrain Tires for Snow by AT Tire Category“ This article is specifically designed to assist you in making informed decisions regarding all-terrain tires in snowy conditions.

Treadwear

Treadwear in all-terrain tires is significantly influenced by your specific usage conditions and vehicle type, making the right tire selection crucial.

Toyo Open Country AT3 is classified as an off-road all-terrain tire, while Cooper Discoverer AT3 leans towards on-road all-terrain performance. Consequently, these two tires exhibit different traction capabilities.

Comparing the Toyo Open Country AT3 and Cooper Discoverer AT3 4S, they share similar UTQG ratings (600 A B for the Toyo AT3 and 620 A B for the Cooper Discoverer AT3 4S), indicating a similar compound stiffness. However, Toyo’s compound is better suited for off-road durability, while the Cooper Discoverer AT3 4S’s compound wears better during highway usage. Both tires are trustworthy options, and your choice should depend on your off-road usage percentage.

As for the Cooper Discoverer AT3 LT, it may not be the best choice for all-terrain use but serves as a solid option for towing with full-size SUVs or 1/2 ton or 3/4 ton pickup trucks that require towing and hauling reliability in winter conditions.

Finally, the Cooper Discoverer AT3 XLT, with its rib-type pattern, stiff compound, and deep tread, stands out as the best option for 3/4 ton or larger pickup trucks. However, the Toyo Open Country AT3 is also a reliable choice if you want to add some off-road aggressiveness to your vehicle.

In summary, all of these tires wear very well, and your choice should be based on your specific driving conditions and needs.

Warranty

Toyo provides a 65,000-mile treadwear warranty for p-metric sizes and a 50,000-mile warranty for LT sizes.

In contrast, the Cooper Discoverer AT3 4S comes with a 6-year, 65,000-mile treadwear warranty, while the Cooper Discoverer AT3 LT and XLT also offer a 6-year, 65,000-mile treadwear warranty.

It’s worth noting that Toyo offers a 45-day trial for the Open Country AT3.

Road Noise

The milder tread of Cooper Discoverer AT3 4S provides smoother ride

Road noise is a distinguishing factor among these tires, primarily due to the aggressive and lugged-type pattern of the Toyo Open Country AT3.

Tire noise is typically generated by the air trapped within the tire’s tread. Consequently, as the tread design becomes more aggressive, the tire tends to produce more noise. The presence of robust shoulder blocks also significantly contributes to this.

In this context, the Cooper Discoverer AT3 4S emerges as the clear winner in terms of road noise. Even though the Toyo Open Country AT3 features an interlocked center section, it still has the most void area among the compared tires, along with robust shoulder blocks. Furthermore, uniformity plays a pivotal role, and the Toyo Open Country AT3 tends to wear more unevenly.

For the Cooper Discoverer AT3 XL and XLT, the difference in noise isn’t substantial, mainly due to their beefy and rugged shoulder blocks.

Overall, the Cooper Discoverer AT3 4S, XLT, and XL are quieter tires, while the Toyo Open Country AT3 is slightly noisier due to its enhanced off-road capability.

Comfort

In this case, a less aggressive tread design and a more elastic internal structure tend to provide a more comfortable ride.

As mentioned in earlier sections, the Cooper Discoverer AT3 4S offers a more comfortable ride compared to the Toyo Open Country AT3, thanks to its rib-type pattern and flexible internal structure.

Similarly, the Cooper Discoverer AT3 XLT and LT, with their less aggressive pattern, also contribute to a slightly more comfortable ride.

Off-Road Performance

Expect mud, Cooper Discoverer AT3 XLT is also great option for off-road performance

When it comes to off-road performance, the choice often comes down to personal preferences.

Toyo Open Country AT3, designed as an off-road all-terrain tire, boasts a larger void area, a more aggressive shoulder design, and impressive sidewall biters. This gives it a clear advantage in loose ground performance, making it excel in mud and sand scenarios, especially for adventurous off-roaders.

On the flip side, Cooper Discoverer AT3 is an excellent choice if you’re seeking a milder off-road traction that mainly involves dirt and gravel. However, it’s worth noting that Cooper Discoverer AT3 XLT shines on gravel due to its exceptionally robust sidewalls and sipes, which provide extra traction.

In summary, Toyo Open Country AT3 is recommended for tackling severe off-road conditions and adventurous terrain, while Cooper Discoverer AT3 is a solid option for those who want a balanced tire with excellent on-road manners.

Specification Comparison for Popular Sizes

Before we delve into a detailed comparison of the Toyo Open Country AT3 and the Cooper Discover AT3, it’s essential to note that their performance can vary depending on the tire size you choose. Let’s start by highlighting some key considerations:

  • Cooper Discoverer AT3 is a better option for daily driving because it’s an on-road all-terrain tire
  • Toyo Open Country AT3 is a better option for off-road driving because it’s an off-road all-terrain tire
  • Cooper Discoverer AT3 is efficiency oriented tire

These variations in wheel sizes, load ranges, weight, and height should be carefully considered when selecting the right tire to suit your specific requirements. Now, let’s proceed with a detailed comparison of popular sizes of these tires.

35×12.5R20

Toyo Open Country AT3 Toyo Open Country AT3 Cooper Discoverer AT3 XLT
Off Road AT Tire Off Road AT Tire On Road AT Tire
E F F
67 lbs 67 lbs 67 lbs
16.9/32″ 16.9/32″ 16.5/32″
10.9″10.3″ 10.6″
United States United States United States

While Cooper Discoverer XLT is exclusively available in the F load range, its highway-pattern design contributes to a smoother and quieter ride. However, there’s a trade-off as it provides less traction on loose ground, particularly in snowy conditions. On the other hand, if you prioritize winter traction, the E load range Toyo Open Country AT3 stands out as the top choice. If your off-road adventures involve frequent air-down conditions, then the F-rated Toyo Open Country AT3 is the tire for you.

285/70R17

Toyo Open Country AT3 Toyo Open Country AT3 Toyo Open Country AT3 Cooper Discoverer AT3 4S Cooper Discoverer AT3 XLT
Off Road AT Tire Off Road AT Tire Off Road AT Tire On Road AT Tire On Road AT Tire
E SL C SL E
55 lbs 47 lbs 54 lbs 43 lbs 55 lbs
16.5/32″ 13.6/32″ 16.5/32″ 14/32″ 17/32″
9″ 9″ 9″ 9.2″ 9.2″
United States Japan United States United States United States

Tire specifications can be quite confusing, especially when you’re not familiar with them. Let’s break it down for this specific tire size.

If your main concern is daily driving and you don’t often encounter severe winter conditions, the Cooper Discoverer AT3 4S with SL (Standard Load) specification is your best bet. However, if you also need excellent traction in severe snow conditions, I’d recommend the Toyo Open Country AT3 SL.

On the flip side, if I were in your shoes, I’d opt for the C-rated Toyo Open Country AT3 instead of the SL version. This C rating enhances sidewall stiffness, which is particularly useful when you’re carrying a heavy load. Plus, it’s worth noting that the C-rated Toyo Open Country AT3 is proudly made in the USA.

For those considering E load range tires, the Cooper Discoverer AT3 XLT stands out as the top choice, especially if you need to tow or haul heavy loads. However, if your priority is excellent snow traction, the E-rated Toyo Open Country AT3 is the better option. So, if you’re an off-roading enthusiast or frequently navigate snowy terrain, the Toyo Open Country AT3 is the way to go. For everyone else, don’t overthink it; the Cooper Discoverer AT3 XLT is the perfect choice.

275/60R20

Toyo Open Country AT3 Toyo Open Country AT3 Cooper Discoverer AT3 4S Cooper Discoverer AT3 XLT
Off Road AT Tire Off Road AT Tire On Road AT Tire On Road AT Tire
E SL SL E
55 42 lbs 44 lbs 56 lbs
16.4 13.5/32″ 12.5/32″ 16/32″
9.4″9.1″ 9.1″ 9.2″
United States United States United States United States

In this specific size range, both tires offer SL (Standard Load) and E load range options. The Cooper Discoverer AT3 excels as a top choice for daily driving, providing excellent performance on the road. However, it’s important to note that its off-road capabilities are limited to mild conditions. So, if you require a bit more traction in muddy terrain, opting for the SL Toyo Open Country AT3 might be the better choice between these two options.

On the other hand, when it comes to E load range tires, the Cooper Discoverer AT3 XLT takes the lead for daily driving needs. It offers a comfortable and reliable on-road experience. Nevertheless, one drawback of this tire is its performance on loose ground, where it may not provide the best traction.

265/70R17

Toyo Open Country AT3 Toyo Open Country AT3 Cooper Discoverer AT3 4S Cooper Discoverer AT3 LT
Off Road AT Tire Off Road AT Tire On Road AT Tire On Road AT Tire
E SL SL E
48 lbs 42 lbs 42 lbs 50 lbs
16.3/32″ 13.4/32″ 14/32″ 16.5/32″
8.4″ 8.4″ 8.6″ 8.7″
United States Japan United States United States

In this specific tire size, it’s worth mentioning that Cooper also offers the Cooper Discoverer AT3 LT option. This tire shines when it comes to heavy towing or extended highway driving. However, it’s important to note that its off-road traction capabilities are not its strong suit. So, while the Cooper Discoverer AT3 LT might provide a smoother ride compared to the E-rated Toyo Open Country AT3 XLT, it’s clear that if you require extra off-road traction, the Toyo Open Country AT3 XLT is the way to go.

When it comes to SL (Standard Load) tires, I won’t reiterate the same points. The Cooper Discoverer AT3 4S remains an efficient choice for daily driving, while the Toyo Open Country AT3 stands out for its winter performance and added dirt and mud traction.

Conclusion

Cooper Discoverer AT3 and Toyo Open Country AT3 are specialized tires designed to excel in different usage conditions.

  • Cooper Discoverer AT3 4S is the top choice for daily driving, particularly for SUV and CUV owners.
  • Toyo Open Country AT3 is the go-to option for extreme off-road conditions, such as mud and challenging terrains.
  • Cooper Discoverer AT3 LT is ideal for 1/2 ton pickup and compact SUV owners who prioritize reliable on-road performance while needing towing and hauling capabilities.
  • Cooper Discoverer AT3 XLT is recommended for 3/4 ton or larger pickup truck owners, especially in warm regions.

I hope this article has been informative and helps you make an informed tire choice. If you have any further questions or need additional assistance, please feel free to leave them in the comments section. Safe travels, everyone!