Toyo
Open Country A/T III EV
275/65R20 · 34.1"
Fits R1
All-Terrain
3PMS Rated
An all-terrain tire that fits the R1, around $422 per tire ($1,689 a set), returning 2.03 mi/kWh across 20 owner vehicles on Rivian Roamer.
Real-world efficiency
2.03 mi/kWh
113,442 mi tracked · 20 vehicles
Average price
$422
per tire · $1,689 / set of 4
Mileage warranty
50,000
miles
Load index
116
R1 minimum is 116
Specifications
Size & Fitment
Size
275/65R20 (34.1")
Load Index
116
Load Range
SL
Max Load
2,756 lb
Speed Rating
H (130)
Max PSI
51
Construction & Performance
Category
All-Terrain
Weight
45.0 lb
Tread Depth
13.5/32
UTQG
600 A A
3PMS Rated
Yes
Mileage Warranty
50,000 miles
Other sizes of this tire
Toyo Open Country A/T III EV
275/60R20 · $412 · 2.09 mi/kWh
Fits R1
Toyo Open Country A/T III EV
275/60R20 · $412 · 1.97 mi/kWh
Fits R1
Toyo Open Country A/T III EV
275/65R20 · $437 · 2.04 mi/kWh
Fits R1
Similar tires in 275/65R20
Best real-world efficiency first.
Goodyear Wrangler ElectricDrive AT
275/65R20 · $410 · 2.49 mi/kWh
Fits R1
Goodyear Wrangler TrailRunner AT
275/65R20 · $387 · 2.45 mi/kWh
Fits R1
Bridgestone Dueler A/T Ascent
275/65R20 · $385 · 2.34 mi/kWh
Fits R1
Pirelli Scorpion All Terrain Plus
275/65R20 · $328 · 2.10 mi/kWh
Fits R1
Bridgestone Dueler A/T Ascent
275/65R20 · $385 · 2.10 mi/kWh
Fits R1
Michelin LTX A/T 2
275/65R20 · $416 · 2.08 mi/kWh
Fits R1
Owner Reviews (3)
RR
May 2026
★★★★★Rated 5 out of 5
Great tire
I’ve been driving Toyo OC AT III tires on my last three trucks and SUVs. Needless to say I’m a huge fan of these tires, and the electric vehicle version doesn’t disappoint either. They’re surprisingly quiet for their tread pattern, which I love the way it looks. They handle fantastic on highways and curvy mountain roads. Snow performance is above average, which is what I expect from a general all-terrain tire.
However, the biggest difference between my current set and the non-electric tire version is how they handle in the rain. I’m not sure if it’s the vehicle or the slightly narrower tire compared to my previous sets, but these tires tend to hydroplane in heavy rain. I never had that issue when I was on a similar set that was 285s. Fortunately, Northern California typically has a short rainy season, so it’s not a major concern for me.
Over the past 12,000 miles, my efficiency has been 1.98 miles per kilowatt. I also did a long drive over the weekend up and down the mountains and averaged 2.2 miles per kilowatt for the trip. That’s about 72-75 miles per hour when possible, with six passengers, the air conditioning on, a full pack of gear in the frunk and rear storage, and going from 500 ft above sea level to 7300 ft above sea level. I’m happy with that, but I’ll try new wheels and the Hankook ION HT as a summer tire set.
Peebles
Feb 2026
★★★★★Rated 5 out of 5
Great AT tire with dedicated EV option
Quiet, comfortable, and capable with better treadwear than factory AT option. Has slightly more sidewall flex in steering response than OE AT tire, but otherwise excellent handling characteristics. Performs well in wet and snowy conditions.
[email protected]
Dec 2025
★★★★★Rated 5 out of 5
$422 ea
$1,689 / set of 4
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