Toyo Open Country AT2 vs AT3

Both of these Toyo tires are all-terrain designed for optimized performance in various terrains and also on paved tracks. Belonging to the same Open Country series, these tires give very similar rugged looks.

With its open tread design, AT3 provides excellent performance in muddy and snowy areas. Due to its high void ratio and greater snow evacuating properties, it is approved for severe winter usage. Moreover, it provides enhanced resistivity against aquaplaning when used for highway driving.

AT2 specifies a compact but more aggressive tread pattern, providing both good on-road performance and optimized off-road experiences. Its high contact patch gives an edge over the competitor by providing an enhanced on-road grip. Among off-road terrains, it shows supreme performance on rocks with its textured tread and improved stone ejection technology.

In comparison, Toyo AT2 provides better traction on paved road, good grip over the icy or rock surfaces, enhanced stone ejecting properties, improved durability, and decreased noise production while AT3 has better winter weather features, performs superior on tracks covered with mud or soft snow, and offers high slip resistance.

 Open Country AT2Open Country AT3
Tire typeAll-terrainAll-terrain
UsageOn/off-roadOn/off-road
Three peak mountain snowflake rated (3PMSF)NoYes
Tested sizeLT325/60R20  LT325/60R20  
Tread depth16.8/32’’17/32’’
Tread width13’’13’’
Maximum inflation pressure65 psi65 psi
Maximum load capacity3750/3415 kg3750/3415 kg
Load/ speed rating126/123R           126/123R           

Comparing Tread of Both Tires

Toyo AT3

AT3 presents an open tread design having three central ribs formed by S-shaped blocks. These blocks are slightly stepped at their edges. In the central portion, it has an interconnected network of broad longitudinal and lateral grooves. Similarly, its marginal and lateral shoulder channels are wider and deeper than its competitor. Thus, its void ratio is comparatively higher. Its blocks carry 3D multi-wave sipes. Shoulder lugs are bigger in size but spaced far apart from each other, however, raised tie bars among lateral grooves connect them. These lugs are also scooped at their edges for enhancing traction in mud and snow. Its grooves are embarked with tiny stone ejectors and sidewalls show only a minimal texturing.

Toyo open country on rock
Toyo AT2

AT2 presents a similar but more aggressive look than its competitor. Its tread design characterizes compactly placed polygonal blocks forming three ribs in the central portion. Its four circumferential grooves and lateral channels specify lesser width and depth in comparison. Its tread blocks have zigzag sipes but these lack 3D profiling. However, its blocks have relatively prominent edging, providing better biting ability. Its shoulder lugs are smaller but their compact placement makes its shoulders bulkier than its competitor. Moreover, shoulder edges are alternatively staggered and scalloped to provide additional traction on the uneven surface. It has more prominent stone ejectors present in its grooves and its sidewalls are also textured more aggressively.

On-Road Dry Traction

Toyo AT3 on road

AT2 shows enhanced dry grip on paved surfaces because its contact patch is relatively higher, enabling the tread to strong grip the road surface. However, steer handling on a dry surface is comparable to the contestant as the shoulders of both tires have a good surface area of tread touching the road

In contrast, AT3 presents relatively lesser on-road grip due to minimized contact patch. However, its dry handling efficiency is very similar to the competitor because it also has the bulky shoulders as the other tire.

 AT2AT3
Dry GripHighModerate
Dry handlingModerateModerate

On-Road Wet Traction

The wet grip of AT2 is comparatively better because the massive vacuum of central grooves and zigzag sipes wipe away water from the surface, ensuring a firm tread grip. When it comes to wet handling, it stands below the competition as its lateral grooves are comparatively less wide, making hydroplaning ability of its shoulders relatively lesser.

On a wet road, AT3’s 3D sipes and deeper grooves resist hydroplaning effectively but a lesser contact patch makes its overall wet grip lesser in comparison. Nevertheless, it provides upgraded wet handling due to wider and deeper lateral grooves.

 AT2AT3
Wet GripHighModerate
Wet handlingModerateHigh

Off-Road Traction

Toyo at3
 AT2AT3
Mud tractionModerateHigh
Snow tractionModerateHigh
Ice tractionHighModerate
Rock tractionHighModerate

Mud Terrain

AT3 scores more points for the Mud traction owing to its high void ratio. As tread blocks are widely spaced grooves provide a lot of vacuum for backward removal of mud, allowing the tire to smoothly roll over on mud-covered paths. Shoulder scoops further add to mud evacuation properties especially when you turn about your vehicle in a muddy area.

On the other side, the ability of AT2 in mud terrain is reliable and optimized yet it ranks relatively below the contestant because its grooves are narrow in comparison, allowing lesser space to evacuate mud. Similarly, its shoulders provide decreased steering control in muddy areas because lateral grooves among shoulder lugs are small and evacuate mud less efficiently. Moreover, its shoulders do not have scooped edges to enhance evacuative space, further reducing its mud efficiency in comparison.

Snow Terrain

On snow-covered surfaces, AT3 takes the lead over its competitor because it shows better snow evacuation capacities. Its broad grooves proficiently throw loose snow backward, automatically clearing its tread and the driving track as it moves forward. This is why it is a 3-peak mountain snowflake (3PMSF) rated tire. On icy pathways, you will get optimized performance from these tires but it gains a lesser score than its competitor as it has a lesser contact patch which eventually decreases the ice grip.

AT2 also shows a good capability of snow crawling due to its aggressive design but its snow performance is comparatively minimized by its lower void ratio. Decreased void capacity in turn decreases the evacuation abilities which can result in choking of the tread in snow-packed areas, leading to lesser traction. Hence, it does not carry a 3PMSF rating. The situation is quite different on frozen pathways, though, where it shows better traction. The higher contact patch is credited for its enhanced grip on the icy surface, assisted by grooves and sipes for hydroplaning resistance.

Rock Terrain

AT2 provides better traction in rock terrain owing to the benefit of its more aggressive tread design. Its larger contact patch accounts for better grip on hard rocks and edged blocks provide enhanced biting ability on the uneven surface of slopes. Its relatively prominent stone ejectors make it even more suitable for rock trailing as it can deal with gravel more efficiently by bumping small stones and pebbles out from the tread. So, you would not face troubles due to stone-punctured tires or decreased traction from the gravel-choked tread. Furthermore, its alternately staggered and scalloped shoulder lugs and aggressive sidewalls provide strong traction, making it easier to handle tricky turns over the mountains and do rock climbing on steep slopes.

AT3 can also be used reliably for trailing due to the biting abilities of its blocks and stone ejectors but in comparison, its rock traction is minimized. Decreased contact patch and minimal edging of blocks result in reduced biting ability on rocky slopes. Its stone ejectors are also less prominent, thus, it can bounce off bombarding gravel particles less efficiently than its competitor. Its scooped should lugs show decreased rock traction as compared to the scalloped shoulders of the competitor. Likewise, its less aggressive sidewalls account for decreased lateral stability when climbing rocks.

Comfort

AT2 provides more comfortable road driving in comparison because its lower void ratio and higher contact patch lead to better on-road traction. Its noise production is also relatively lesser as its narrower grooves allow decreased space for the circulation of wind particles. Moreover, shoulder blocks are connected through prominent tie bars which act as sound barriers by limiting sound resonation. 

On the other side, Toyo AT3 stands less comfortable for street driving due to its high noise profile and minimal on-road comfort. Its limited contact patch makes driving on paved tracks, a relatively difficult task as traction is reduced. When it comes to sound production, noisy air particles find massive space in its grooves, making loud tire noise. It also has tie bars but they are less prominent and have decreased ability as sound barriers.

 AT2AT3
Driving comfortHighLow – moderate
Noise productionModerateHigh

Durability and Treadwear

Both these tires have robust structuring and wear-resilient polymer compositions. They are molded from polyester (2 plies) and nylon (1 ply) rubber which is strengthened by two steel belts, ensuring that tread has good cut and chip resistance. Due to this reason, Toyo tires back both these tires with a mileage warranty for up to 65,000 miles and also gives a guarantee of even wear with a uniformity warranty up to 1/32 inch.

Comparatively speaking, AT2 seems to provide longer tread life due to aggressive texturing and enhanced stone ejecting ability. Rugged sidewalls and protruding ejectors bounce off hard gravel particles and keep the tread safe from the risk of stone punctures.

 AT2AT3
 DurabilityHighModerate-high
Treadwear warranty (Metric sizes)65,000 miles/ 5 years65,000 miles/ 5 years
Treadwear warranty (LT sizes)50,000 miles/ 5 years50,000 miles/ 5 years
Uniformity warrantyFirst 1/32’’First 1/32’’
Workmanship warranty5 years5 years

Price

Toyo AT3 is priced higher in comparison but it comes with the benefit of better winter performance, superior mud and snow evacuation, and high aquaplaning resistivity. It is priced from $530 to $600.

AT2 stands comparatively budget-friendly because its enhanced on-road performance can be enjoyed at a relatively lesser expense. Its price range spans from $500 to $570.

Quick Summary

Both of these are all-terrain tires.

Open Country AT2:

  • has a stronger grip on the paved surface.
  • Shows better performance on the ice.
  • provides enhanced rock traction and stone repelling efficiency.
  • Offers more driving comfort and lesser tire noise.

Toyo AT3:

  • Has efficient wet handling properties.
  • Provides higher aquaplaning resistance
  • Is rated for severe winter usage.
  • Deals better with mud and soft snow.