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boosted20v

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Ordered in February, installed last Friday. Antique Bronze AWZZ's 20 x 8.5 with Toyo Open Country EV's in 275/60/20. Replaced my factory bright 22's with the OEM Pirelli Scorpions 275/50/22. New setup is 7lbs lighter per corner which was immediately noticeable turning the wheel pulling out of the shop after getting them installed. It's also not as harsh over crashing bumps. Unsprung mass is real!! Took a 52 mile trip through Houston on Saturday mostly highway at a steady 72 to 75 miles an hour with an efficiency of 2.55 kwph which is on par with the 22's. The second screen shot was the round trip back home the next morning at 82 to 87 mph. Wheels balanced great (I lost a wheel weight on my 22's causing a pretty significant shake at 84 mph) truck is smooth as silk, dead stable up to 90 +, and not noticeably louder than my well worn 22" road tires. Happy customer! Shout out to Atomic for the service and quality product!

Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires 20250524_092543


Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires 20250524_092511


Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires 20250524_092459


Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires 20250524_092615


Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires 20250525_164435


Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires 20250524_125344
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technerd

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Interesting, I seem to be in the minority here, I just switched from the Sport Bright 22s as well, but these Toyos are louder and significantly less efficient than the stock Pirellis. I just finished an 1800 mile trip and averaged 2.06 mi/kwh with an average speed of 75mph, where I'm used to 2.2-2.4 on the Pirellis. They do ride a bit better and look a lot better though.

Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires IMG_2387


Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires IMG_2355
 
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boosted20v

boosted20v

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Looks like you have the LT's. I went with the XL's which have a 116 load rating. I believe the LT's are heavier which could be why they are louder and also less efficient than the XL's.
 

MidnightRivian

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Try to keep the tire pressure below the MAX PSI which for the XL 116T in 275/60R20 tire shows 50 PSI.

I have the same tire in 275/65R20 and my MAX is 51 PSI.

Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires 1748472619828-xl
 

MidnightRivian

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Looks like you have the LT's. I went with the XL's which have a 116 load rating. I believe the LT's are heavier which could be why they are louder and also less efficient than the XL's.

TOYO AT 3 EV LT is 53 lbs tire. SL / XL is 42 lbs tire and I think stock is 48 lbs weight per tire.


Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires 1748472674345-0y


Rivian R1T R1S Atomic Wheels AWZZ + Toyo Open Country ATIII EV tires 1748472816166-5t
 

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boosted20v

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Try to keep the tire pressure below the MAX PSI which for the XL 116T in 275/60R20 tire shows 50 PSI.

I have the same tire in 275/65R20 and my MAX is 51 PSI.

1748472619828-xl.jpg
Yeah I set them at 50 they rose after the ride. I will probably drop them a bit.
 

MidnightRivian

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Yeah I set them at 50 they rose after the ride. I will probably drop them a bit.

Same issue here. I set them to 48 and they like to bounce between 47 and 51 with the recent temp swings.
 

Atomic Wheels

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Ordered in February, installed last Friday. Antique Bronze AWZZ's 20 x 8.5 with Toyo Open Country EV's in 275/60/20. Replaced my factory bright 22's with the OEM Pirelli Scorpions 275/50/22. New setup is 7lbs lighter per corner which was immediately noticeable turning the wheel pulling out of the shop after getting them installed. It's also not as harsh over crashing bumps. Unsprung mass is real!! Took a 52 mile trip through Houston on Saturday mostly highway at a steady 72 to 75 miles an hour with an efficiency of 2.55 kwph which is on par with the 22's. The second screen shot was the round trip back home the next morning at 82 to 87 mph. Wheels balanced great (I lost a wheel weight on my 22's causing a pretty significant shake at 84 mph) truck is smooth as silk, dead stable up to 90 +, and not noticeably louder than my well worn 22" road tires. Happy customer! Shout out to Atomic for the service and quality product!

20250524_092543.jpg


20250524_092511.jpg


20250524_092459.jpg


20250524_092615.jpg


20250525_164435.jpg


20250524_125344.jpg
Thanks for the kind words! It’s been a pleasure having you as a customer. Also, thanks for the info — it always adds a lot of value. Enjoy them!
 

2kwik4u

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Interesting, I seem to be in the minority here, I just switched from the Sport Bright 22s as well, but these Toyos are louder and significantly less efficient than the stock Pirellis. I just finished an 1800 mile trip and averaged 2.06 mi/kwh with an average speed of 75mph, where I'm used to 2.2-2.4 on the Pirellis. They do ride a bit better and look a lot better though.
For reference, all of my road trips (~3k miles) in my Dual/Large with OEM 20" Pirelli AT's......I averaged 2.07mi/kWh. 2.06mi/kWh doesn't seem terrible from here.

@boosted20v How loud are the Toyos?

My R1T is in the shop, and I'm in the Service Loaner. My stock AT's are worn heavily at 16kmi, and the service loaner is on the 22in sport wheel/tire package, also at ~16k miles, and they're damn near silent. My worn AT's howl badly.
 
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boosted20v

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For reference, all of my road trips (~3k miles) in my Dual/Large with OEM 20" Pirelli AT's......I averaged 2.07mi/kWh. 2.06mi/kWh doesn't seem terrible from here.

@boosted20v How loud are the Toyos?

My R1T is in the shop, and I'm in the Service Loaner. My stock AT's are worn heavily at 16kmi, and the service loaner is on the 22in sport wheel/tire package, also at ~16k miles, and they're damn near silent. My worn AT's howl badly.
In my initial drive as I listed above I said I didn't really notice any noise. Having driven a week I notice some noise (almost a low pitch buzzing) on certain types of pavement. Not annoying, but noticable, which of course the All seasons didn't display.
 

mrodriguez

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For reference, all of my road trips (~3k miles) in my Dual/Large with OEM 20" Pirelli AT's......I averaged 2.07mi/kWh. 2.06mi/kWh doesn't seem terrible from here.

@boosted20v How loud are the Toyos?

My R1T is in the shop, and I'm in the Service Loaner. My stock AT's are worn heavily at 16kmi, and the service loaner is on the 22in sport wheel/tire package, also at ~16k miles, and they're damn near silent. My worn AT's howl badly.
The road noise is real. I'm at ~21k and I'm finding it unbearable. Tread wear is still reasonable, but I don't know how much more I can take. I was looking at these Toyo's as a replacement already.
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