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Toyo Open Country A/T III vs Cooper Discoverer S/T Maxx tires

Last updated 7/12/2024 - Originally published 7/12/2024
Written by SimpleTire

The best way to optimize the AWD or 4x4 on pickup trucks, SUVs, and crossovers is to find and purchase suitably aggressive all-terrain tires. With the above in mind, we at SimpleTire would like to suggest the Toyo Open Country A/T III as a great option for enthusiasts. This tire is known for providing the ideal balance of performance, innovation, quality, and first-rate customer service. In comparison, the Cooper Discoverer S/T Maxx offers solid, commercial-grade traction for high durability and capability. Cooper tires have always been known for great grip and high durability on trails and wet roads, and the Discoverer S/T Maxx is no exception. Find out more about them through this comparison between Open Country A/T III and Discoverer S/T Maxx.

Toyo Open Country A/T III tires

An aggressive tread pattern is essential for tackling rough terrain, and the Toyo Open Country A/T III displays the same as it has created using an advanced tread design. The same design is also responsible for exceptional wet performance and longevity here, with the tire displaying the Three Peak Mountain Snowflake certification to reassure drivers during harsh winters. This all-terrain tire displays the ability to function in challenging situations, which is a crucial part of traction. Supreme braking performance and dependable on- and off-road traction are the other qualities visible here. Based on the above, we determined that the tire was appropriate for an amazing average SimpleScore of 9.3.

Cooper Discoverer S/T Maxx tires

As an all-terrain tire that fits high-torque vehicles and commercial light trucks, the Cooper Discoverer S/T Maxx makes a name for itself in terms of performance, stability, and off-road capabilities. An innovative cut-and-chip-resistant compound enables the tire to resist punctures, wounds, and chips. Stone ejectors remove rocks and stones from the tread to provide consistent traction as the tire moves along. Further, the construction has been made using suitable technology to maximize tire strength and durability. A hybrid 4-5 rib design ensures low tread pattern noise, resulting in a quiet ride. The Discoverer S/T Maxx is responsible for a balanced and quiet ride and is good enough for an average SimpleScore of 8.4.

Toyo Open Country A/T III vs Cooper Discoverer S/T Maxx tires on traction

Both tires are available with stone ejectors to remove unwanted rocks and other debris to generate consistent traction. However, the Toyo Open Country A/T III may be more suited for moderate to heavy snow as it features the Three Peak Mountain Snowflake certification, unlike the Discoverer S/T Maxx which receives stud holes for extra grip on snow and ice. While there are symmetrical tread patterns on both tires, the tread depth for the Discoverer S/T Maxx is much higher, resulting in a high grip. On the other hand, the Open Country A/T III gets 3D wave sipes for better grip in rain and snow. While the Toyo Open Country A/T III receives an outstanding average SimpleScore of 9.8, the Cooper Discoverer S/T Maxx is suitable for a score of 8.6.

ADVANTAGE: Toyo Open Country A/T III

Toyo Open Country A/T III vs Cooper Discoverer S/T Maxx tires on handling

You can expect the Toyo tires to generate superior braking power, thereby ensuring high levels of safety on snowy, icy, and wet surfaces. As a T-rated tire (in select sizes), the Open Country A/T III gets a higher speed rating than the Discoverer S/T Maxx. The tough rubber compound enables drivers to benefit from high stability due to the tough rubber compound, high tread depth, and symmetrical tread pattern. The features mentioned above enable us to give this tire an excellent handling SimpleScore of 9.3.

On the other hand, the tread depth for the Discoverer S/T Maxx is much higher than the above, although the tread pattern is symmetrical. The aggressive tread blocks help enhance handling performance. With a Q-speed rating, we found this tire to be suitable for an average handing SimpleScore of 8.6.

ADVANTAGE: Toyo Open Country A/T III

Toyo Open Country A/T III vs Cooper Discoverer S/T Maxx tires on longevity

Both tires are available with unique rubber compounds that ensure performance as per design. While both tires have rubber compounds that offer a high amount of chip, puncture, and cut resistance to increase durability, the compound on the Open Country A/T III also aids in wet weather performance. The Cooper Discoverer S/T Maxx has a higher tread depth and a 10-ply rating for carrying heavy loads without tires losing shape. While the Open Country A/T III is available with a limited manufacturer tread life warranty that ranges from 50,000 to 65,000 miles, the Discoverer S/T Maxx does not feature a warranty. Armor Tec3 Technology on the Discoverer S/T Maxx gives it tremendous tread and sidewall durability on difficult terrain. We found the Toyo Open Country A/T III to be suitable for an average longevity SimpleScore of 8.9 and the Discoverer S/T Maxx gets a score of 8.3.

ADVANTAGE: Toyo Open Country A/T III

When to use each

Both, the Open Country A/T and the Discoverer S/T Maxx tires are all-terrain type of tires and they are good for on- and off-road (occasional) driving in dry, wet, and light snow conditions. These tires also come with the additional ability to serve in moderate to severe winter weather conditions as they are Three Peak Mountain Snowflake certified, which means they can be confidently used on icy or snow surfaces. It is to be noted that they aren’t pre off-roading tires and if you need something that can handle brutal terrain and tackle deep mud and dirt, then consider a set of mud-terrain tires.

Which one should you choose?

After a look at the scores, you may already be convinced that the Toyo Open Country A/T III is the better tire as it outscores its rival on all the parameters above. Although this tire does seem like the better alternative, the Cooper Discoverer S/T Maxx does offer strong competition. For example, those drivers who take their vehicles into very rough off-road areas regularly would find them both highly resistant to chips and cuts.

Here are the reasons to buy the Toyo Open Country A/T III:

  • You want a higher warranty
  • You want better traction
  • You want better braking performance
  • You want a higher speed rating
  • You want a long-lasting tire

Compared to the above, you should choose the Cooper Discoverer S/T Maxx if:

  • You want the more aggressive-looking tire
  • You want to use the tire for commercial traction
  • You need strong on-road performance throughout the year

Still not sure which tire to buy? Fortunately, SimpleTire is here to help, and our helpful agents are more than happy to assist you in selecting the right tire for your ride and budget.

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