Toyo Open Country A/T III EV (275/65R20)
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.

Rated 5 out of 5 5.0 · 3 ratings
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

Owner Reviews (3)

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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