20" Inch Toyo Open Country AT3 EV (LT275/65/20) - 17K Mile Review on the Rivian R1T

[lslick23]

Did you just change to the 20" size, or did you have 20's before that made it to 45K miles?

He originally had 21’s and changed to 20 brights and did the 45k on those. I can only confirm, but embarrassed to say he’s my brother . I forced him to get the Toyos but his are the 116H version.

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[ModestoMan]

I have the 20s on my gen1 quad and dropped the Perrelli’s at 20k miles.....after 3 punctures. I have 3k miles on the LT Toyos and they have been great! I feel much more confident off road, noise is markedly reduced, and my efficiency is essentially the same. 2.21 at 20k on Perrelli’s and 2.17 at 3k on the Toyos. Thumbs up!

 

[Zorg]

My Toyo LT tires have about 13k miles and they're getting noisy

 

[neocyn]

I switched from the 21s to the SL version of the Toyos. After about 800 miles I’m observing 2.02 on my early Gen 1 R1T Quad. For reference, my efficiency is dragged down by a lot of short trips; I averaged 2.12 on the 21” pirellis.

Very happy with the Toyos so far

 

[Yo Soy Tu Papa]

Great review! I completely agree, the Toyo A/T III EVs (only come in LT) are the best tires I’ve had on the Rivian.
I only got about 25K out of the factory Pirellis (SL), and they got really loud after just a few thousand miles. Wanting something better, I followed a lot of forum recommendations and tried the Nokians (Outpost AT [LT]). I gave them a solid week, driving 70+ miles a day, pushing the truck hard like I usually do.

But honestly, I never felt confident on them. The steering felt vague and unstable compared to the Pirellis, which handled sharp and precise (for a truck). With the Nokians, I found myself backing off in corners and highway transitions because the truck didn’t respond the way I was used to. One plus about the Nokians, on the highway, they were definitely quiet and luxurious. Luckily, Discount Tire has great customer service and warranty! I was able to return the Nokians and get the Toyo A/T III EVs.

Swapping to the Toyos changed everything, the confidence and stability came right back, and I finally have a tire that performs! They have been developing a slight road noise. I have about 8k miles on them. Range improved slightly. I was at 2.1-2.1 on Pirellis and now 2.2-2.3 on the Toyos.

 

[Singletracker]

When offering a tire review, among other things, it’s very important to include whether the tire in question is an SL version or an LT version. They are not the same tire and will perform differently (handling, noise, durability, efficiency, etc.)

 

[Yo Soy Tu Papa]

Great point. I updated my comment.
In my experience, the funny thing is the stock Pirellis are SL and feel very similar to the LT Toyo AT III EVs while the LT Nokians were the guilty squishy tire I expect from a SL tire. Who knows.

 

[UnsungZero_OldTimeAdMan]

I switched from the 21s to the SL version of the Toyos. After about 800 miles I’m observing 2.02 on my early Gen 1 R1T Quad. For reference, my efficiency is dragged down by a lot of short trips; I averaged 2.12 on the 21” pirellis.

Very happy with the Toyos so far

You also went from a 32.9" diameter to 34.1", in addition to AS to AT tread. So the efficiency drop is expected (and not as bad as some other ATs).

 

[SnowFlyer]

When offering a tire review, among other things, it’s very important to include whether the tire in question is an SL version or an LT version. They are not the same tire and will perform differently (handling, noise, durability, efficiency, etc.)

I'm in need for my first set of replacements and I think I've settled on the Toyo AT 3 EV's however I'm not sure if I should get the Passenger variant or the LT. I drive an R1S in a wide variety of conditions. I don't off road frequently, but when I do I get after it. I want a tire with a puncture resistant sidewall that can aired down do tackle tough trails.

As was mentioned in an earlier post there are both LT and Passenger versions of this size Toyo available. Do any of you have a good grasp of the pros and cons of choosing LT vs Passenger for a use case like mine and why?

Spec differences between the two:

Version	Speed	Max Load	Weight	Tread Depth	Max PSI
Passeger 275/65R20	H (130 mph)	2,756	42	13.5	51
LT 275/65R20	S (110 mph)	3,750	55	16.4	80

I'm no tire expert, however I do have several decades worth of car, truck and SUV ownership along with a decent amount of lifetime off-road experience. I don't think I've ever had an SUV with LT tires. Some commenters say one is better than the other but it's not really clear to me what is truly best of me. I can see pros and here are my thoughts. If you have more knowledge or think I'm wrong in any area below, please let me know.

1) Speed Rating:

The Passenger version of the Toyo along with the OEM Pirelli is "H" speed rated (130 mph). The LT version of thg Toyo is "S" speed rated (110 mph). Even though I never intend to go 110 mph the H seems more desirable. I drive at highway speed in the desert and value a safe, reliable tire.

From Google AI:
"Higher speed ratings generally mean better performance in terms of heat dissipation and handling, but they do not imply that it's safe to drive at those speeds in all conditions."

The Passenger version may win here (unless the higher load rating of the LT tire trumps the higher speed rating of the Passenger tire).

Another consideration is that all the OEM tires from Rivain (to my knowledge) are passenger variants and not LT. So you could say that if Rivian chooses passenger variants for OEM then we should too. However I don't think we know for sure if Rivian makes this choice because it's really the best performing tire or because of economics or EPA considerations.

For now I'll say Passenger Wins (however admit I'm not 100% certain)

2) Load Rating/Sidewall:

The LT has 1,000 pounds greater load rating (per tire). I can see this being both a pro and a con. The thicker sidewall might be more durable off-road, and provide better sidewall puncture resistance. However, since the LT version has a higher load rating thus a stiffer sidewall, this could inhibit pliability thus its ability to increase tire footprint when aired down for off-roading.

I don't know enough about this category to make a good call, but seems like it may be a draw between the LT and Passenger varieties in the Load Rating/Sidewall. Thoughts?

Winner Unknown.

3) Tread Depth:

LT has 33% more useful tread depth (amount of tread above 4/32).

LT wins

4) Ride comfort:

Passenger wins

5) Rubber Compound Durability and Grip (aka UTQG):

Toyo publishes the UTQG for the Passenger variant but not for LT, so we don't know which has more grip and which has better wear. Between the two, grip is most important to me. If I were to make an educated guess I would think that the passenger variant has a softer rubber compound since it's designed for a lighter load. I'm guessing the Passenger wins here but really don't know. Thoughts?

Winner unknown.

So which version do YOU think I should go with and why?

https://www.toyotires.com/product/open-country-at3-ev/

 

[UnsungZero_OldTimeAdMan]

I'm in need for my first set of replacements and I think I've settled on the Toyo AT 3 EV's however I'm not sure if I should get the Passenger variant or the LT. I drive an R1S in a wide variety of conditions. I don't off road frequently, but when I do I get after it. I want a tire with a puncture resistant sidewall that can aired down do tackle tough trails.

As was mentioned in an earlier post there are both LT and Passenger versions of this size Toyo available. Do any of you have a good grasp of the pros and cons of choosing LT vs Passenger for a use case like mine and why?

Spec differences between the two:

Version	Speed	Max Load	Weight	Tread Depth	Max PSI
Passeger 275/65R20	H (130 mph)	2,756	42	13.5	51
LT 275/65R20	S (110 mph)	3,750	55	16.4	80

I'm no tire expert, however I do have several decades worth of car, truck and SUV ownership along with a decent amount of lifetime off-road experience. I don't think I've ever had an SUV with LT tires. Some commenters say one is better than the other but it's not really clear to me what is truly best of me. I can see pros and here are my thoughts. If you have more knowledge or think I'm wrong in any area below, please let me know.

1) Speed Rating:

The Passenger version of the Toyo along with the OEM Pirelli is "H" speed rated (130 mph). The LT version of thg Toyo is "S" speed rated (110 mph). Even though I never intend to go 110 mph the H seems more desirable. I drive at highway speed in the desert and value a safe, reliable tire.

From Google AI:
"Higher speed ratings generally mean better performance in terms of heat dissipation and handling, but they do not imply that it's safe to drive at those speeds in all conditions."

The Passenger version may win here (unless the higher load rating of the LT tire trumps the higher speed rating of the Passenger tire).

Another consideration is that all the OEM tires from Rivain (to my knowledge) are passenger variants and not LT. So you could say that if Rivian chooses passenger variants for OEM then we should too. However I don't think we know for sure if Rivian makes this choice because it's really the best performing tire or because of economics or EPA considerations.

For now I'll say Passenger Wins (however admit I'm not 100% certain)

2) Load Rating/Sidewall:

The LT has 1,000 pounds greater load rating (per tire). I can see this being both a pro and a con. The thicker sidewall might be more durable off-road, and provide better sidewall puncture resistance. However, since the LT version has a higher load rating thus a stiffer sidewall, this could inhibit pliability thus its ability to increase tire footprint when aired down for off-roading.

I don't know enough about this category to make a good call, but seems like it may be a draw between the LT and Passenger varieties in the Load Rating/Sidewall. Thoughts?

Winner Unknown.

3) Tread Depth:

LT has 33% more useful tread depth (amount of tread above 4/32).

LT wins

4) Ride comfort:

Passenger wins

5) Rubber Compound Durability and Grip (aka UTQG):

Toyo publishes the UTQG for the Passenger variant but not for LT, so we don't know which has more grip and which has better wear. Between the two, grip is most important to me. If I were to make an educated guess I would think that the passenger variant has a softer rubber compound since it's designed for a lighter load. I'm guessing the Passenger wins here but really don't know. Thoughts?

Winner unknown.

So which version do YOU think I should go with and why?

https://www.toyotires.com/product/open-country-at3-ev/

Boils down to how much you care about on-pavement efficiency. You say you don't off-road often. That to me means it makes no sense to compromise efficiency of over 90% (?) of annual use, just enjoy care-free toughness occasionally. Punctures can be avoided if you pay attention to where you place your tires. And if you carry a full size spare too, that's extra insurance. You could always keep two sets, one with AS for on-pavement efficiency and another with LT AT. But that seems a bit wasteful for occasional off-road outings.

 

[Singletracker]

I'm in need for my first set of replacements and I think I've settled on the Toyo AT 3 EV's however I'm not sure if I should get the Passenger variant or the LT. I drive an R1S in a wide variety of conditions. I don't off road frequently, but when I do I get after it. I want a tire with a puncture resistant sidewall that can aired down do tackle tough trails.

As was mentioned in an earlier post there are both LT and Passenger versions of this size Toyo available. Do any of you have a good grasp of the pros and cons of choosing LT vs Passenger for a use case like mine and why?

Spec differences between the two:

Version	Speed	Max Load	Weight	Tread Depth	Max PSI
Passeger 275/65R20	H (130 mph)	2,756	42	13.5	51
LT 275/65R20	S (110 mph)	3,750	55	16.4	80

I'm no tire expert, however I do have several decades worth of car, truck and SUV ownership along with a decent amount of lifetime off-road experience. I don't think I've ever had an SUV with LT tires. Some commenters say one is better than the other but it's not really clear to me what is truly best of me. I can see pros and here are my thoughts. If you have more knowledge or think I'm wrong in any area below, please let me know.

1) Speed Rating:

The Passenger version of the Toyo along with the OEM Pirelli is "H" speed rated (130 mph). The LT version of thg Toyo is "S" speed rated (110 mph). Even though I never intend to go 110 mph the H seems more desirable. I drive at highway speed in the desert and value a safe, reliable tire.

From Google AI:
"Higher speed ratings generally mean better performance in terms of heat dissipation and handling, but they do not imply that it's safe to drive at those speeds in all conditions."

The Passenger version may win here (unless the higher load rating of the LT tire trumps the higher speed rating of the Passenger tire).

Another consideration is that all the OEM tires from Rivain (to my knowledge) are passenger variants and not LT. So you could say that if Rivian chooses passenger variants for OEM then we should too. However I don't think we know for sure if Rivian makes this choice because it's really the best performing tire or because of economics or EPA considerations.

For now I'll say Passenger Wins (however admit I'm not 100% certain)

2) Load Rating/Sidewall:

The LT has 1,000 pounds greater load rating (per tire). I can see this being both a pro and a con. The thicker sidewall might be more durable off-road, and provide better sidewall puncture resistance. However, since the LT version has a higher load rating thus a stiffer sidewall, this could inhibit pliability thus its ability to increase tire footprint when aired down for off-roading.

I don't know enough about this category to make a good call, but seems like it may be a draw between the LT and Passenger varieties in the Load Rating/Sidewall. Thoughts?

Winner Unknown.

3) Tread Depth:

LT has 33% more useful tread depth (amount of tread above 4/32).

LT wins

4) Ride comfort:

Passenger wins

5) Rubber Compound Durability and Grip (aka UTQG):

Toyo publishes the UTQG for the Passenger variant but not for LT, so we don't know which has more grip and which has better wear. Between the two, grip is most important to me. If I were to make an educated guess I would think that the passenger variant has a softer rubber compound since it's designed for a lighter load. I'm guessing the Passenger wins here but really don't know. Thoughts?

Winner unknown.

So which version do YOU think I should go with and why?

https://www.toyotires.com/product/open-country-at3-ev/

I have about 1400 miles on a set of Bridgestone Ascent LT275/65-20 A/T’s on my ‘23 R1T QM. First off, forget the speed rating. You couldn’t travel at sustained speeds much in excess of 110 mph, anyway. The Rivian just won’t do it.

For me, it made sense to go with LT’s for durability, if nothing else. These are very heavy vehicles. If you off-road at all, which I do, there is peace of mind knowing that the you have that extra protection from side wall punctures. That would be even more important in an R1S with no full size spare. I wouldn’t be too concerned about pliability when airing down - it’s a 7500 lbs rig. You also noted greater tread depth on the LT’s. As with most, I was concerned about noise, handling, ride comfort, and any efficiency hit with LT’s. As for the Bridgestones, they are very quiet (time will tell how that plays out). As far as handling goes, they do feel a tad heavier, maybe a bit less responsvie. I drive in the mountains a lot and they get the job done. They are a tad harsher on certain road conditions (heavier, with stiffer sidewalls), but really no big deal - very comfortable in most conditions. They cruise down the highway just as smooth as they can be. I’m currently running about 52 psi cold. The really, really good news for me has been the efficiency hit, if any, has been minuscule - basically insignificant. Bottom line, I am very happy I went with the Bridgestone Ascent LT’s.

To be clear, I’m running them on an R1T and I know nothing about the Toyos, so I can’t speak to how they compare to the Bridgestones. I also have relatively few miles on these tires. But, so far, I am way more than pleased that I opted for the LT’s. My all time favorite tire is the Falken Wildpeak A/T3W. This time, I steered away from those to save a little weight.

 

[mike813]

bumping a slightly old thread that just provided some great context. Thanks to the OP and all the comments.

I just hit 60k miles on a set of BFG KO2s (126S, E1). I bought these tires two days after buying my R1S. They've really been great. I've kept my KO2's at a 60-PSI target, which sometimes climbs to 65psi under normal use in the Florida heat. I've got a full 60k miles on them and still a bit of tread left with super-even wear, but I don't want to push my luck with tire wear especially with a teenage driver in the house, so I'm shopping for my next set.

Now that I'm out of warranty, and knowing that I'm currently planning to keep this beast for quite a while, it's time for a new set of shoes, and I'm thinking I might go with the Toyo EV. I thought about the KO3 (why mess with a good thing?) and of course the internet and these forums seem to like the Falken, but I know that I'll start to be a bit more cautious with this thing now that we're out of warranty. We'll still use my R1S for beach rides and the occasional trip to see snow and occasional trail roads and construction sites, but I don't think I'll push it too hard knowing that my next half-shafts will come with one hell of an amex charge. I'm really only considering AT tires, for the look, and the capability.

My wife's R2 is about to be on order, I got the email today that I'll be asked to order in a few weeks. She wants the Ocean interior, hopefully still with the launch edition, we'll see. we'll use this R2 any time we need better range.

My KO2's have truly been exceptional, and it sure is nice having tires on these trucks that let them do what they can do in the woods and the swamps. But as my vehicle ages I think I might like a bit more range and something softer. I've never really cared too much about range - I like stopping at Bucees every couple of hours on road trips, but i certainly wouldn't mind a bit more efficiency/range. I only tow a couple of times a year, and only the occasional off-road, but I use it enough to need/want the look and capability of ATs.

Anyway, for anyone else stumbling on this thread - any current thoughts on the Toyo ATIII EV? How have they been performing? I would definitely be looking at the 126S E1 (LT version). Anyone do a chalk test and push the PSI?

Any comments or thoughts would be appreciated. Photo attached just for fun (relocating a teardrop for a friend).

 

[starbux]

bumping a slightly old thread that just provided some great context. Thanks to the OP and all the comments.

I just hit 60k miles on a set of BFG KO2s (126S, E1). I bought these tires two days after buying my R1S. They've really been great. I've kept my KO2's at a 60-PSI target, which sometimes climbs to 65psi under normal use in the Florida heat. I've got a full 60k miles on them and still a bit of tread left with super-even wear, but I don't want to push my luck with tire wear especially with a teenage driver in the house, so I'm shopping for my next set.

Now that I'm out of warranty, and knowing that I'm currently planning to keep this beast for quite a while, it's time for a new set of shoes, and I'm thinking I might go with the Toyo EV. I thought about the KO3 (why mess with a good thing?) and of course the internet and these forums seem to like the Falken, but I know that I'll start to be a bit more cautious with this thing now that we're out of warranty. We'll still use my R1S for beach rides and the occasional trip to see snow and occasional trail roads and construction sites, but I don't think I'll push it too hard knowing that my next half-shafts will come with one hell of an amex charge. I'm really only considering AT tires, for the look, and the capability.

My wife's R2 is about to be on order, I got the email today that I'll be asked to order in a few weeks. She wants the Ocean interior, hopefully still with the launch edition, we'll see. we'll use this R2 any time we need better range.

My KO2's have truly been exceptional, and it sure is nice having tires on these trucks that let them do what they can do in the woods and the swamps. But as my vehicle ages I think I might like a bit more range and something softer. I've never really cared too much about range - I like stopping at Bucees every couple of hours on road trips, but i certainly wouldn't mind a bit more efficiency/range. I only tow a couple of times a year, and only the occasional off-road, but I use it enough to need/want the look and capability of ATs.

Anyway, for anyone else stumbling on this thread - any current thoughts on the Toyo ATIII EV? How have they been performing? I would definitely be looking at the 126S E1 (LT version). Anyone do a chalk test and push the PSI?

Any comments or thoughts would be appreciated. Photo attached just for fun (relocating a teardrop for a friend).

The Toyos are still going strong. I am at 35k miles on them and still 10/32nds. I need to do another review. They are getting a bit louder now, but that is a give towards the end of the life.

 

[nsuglerio]

The Toyos are still going strong. I am at 35k miles on them and still 10/32nds. I need to do another review. They are getting a bit louder now, but that is a give towards the end of the life.

What PSI are your running at? I just got a set of the LT ones from Discount Tire and they set mine to 48 and I they have been running loud.. Wondering if I should go up.

 

[starbux]

What PSI are your running at? I just got a set of the LT ones from Discount Tire and they set mine to 48 and I they have been running loud.. Wondering if I should go up.

I run 50 empty up to 60 when fully loaded. They just set it to 48 because that is what the door card shows.

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