Toyo Open Country A/T III EV (275/60R20)
Toyo

Open Country A/T III EV

275/60R20 · 33" Fits R1 All-Terrain 3PMS Rated

An all-terrain tire that fits the R1, around $412 per tire ($1,648 a set), returning 2.09 mi/kWh across 5 owner vehicles on Rivian Roamer.

Rated 5 out of 5 5.0 · 3 ratings
Real-world efficiency
2.09 mi/kWh
32,939 mi tracked · 5 vehicles
Average price
$412
per tire · $1,648 / set of 4
Mileage warranty
50,000
miles
Load index
116
R1 minimum is 116
View at Tire Rack Compare

Specifications

Size & Fitment
Size 275/60R20 (33")
Load Index 116
Load Range XL
Max Load 2,756 lb
Speed Rating T (118)
Max PSI 50
Construction & Performance
Category All-Terrain
Weight 43.0 lb
Tread Depth 13.5/32
UTQG 600 A B
3PMS Rated Yes
Mileage Warranty 50,000 miles

Other sizes of this tire

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 · $422 · 2.03 mi/kWh Fits R1 Toyo Open Country A/T III EV 275/65R20 · $437 · 2.04 mi/kWh Fits R1

Similar tires in 275/60R20

Best real-world efficiency first.
Goodyear Wrangler Territory AT 275/60R20 · $284 · 2.13 mi/kWh Fits R1 General Grabber A/TX 275/60R20 · $321 · 2.04 mi/kWh Fits R1 Toyo Open Country A/T III EV 275/60R20 · $412 · 1.97 mi/kWh Fits R1 Nokian Outpost nAT 275/60R20 · $324 · 1.95 mi/kWh Fits R1 Nitto Terra Grappler G3 275/60R20 · $304 · 1.93 mi/kWh Fits R1 Falken WildPeak A/T4W 275/60R20 · $342 · 1.63 mi/kWh Fits R1

Owner Reviews (3)

Write a Review
Bao Sep 2026 Rated 5 out of 5
Smooth ride
First time having A/T tires so cant compare it to others. But i did had a loaner R1T with stock all terrain Pirellis and it had a humming sound. The ride is smooth with these Toyota and not much louder than the stock Pirellis on 21” wheels i had on prior. I Avg 1.99 mi/ kWh and they look amazing too in the All Terrain dark wheels as well.
John Mort Aug 2026 Rated 5 out of 5
Excellent AT tire
Had these tires for a year. Excellent on road and off road performance. Much quieter than original Pirelli tires!
Dustin Mar 2026 Rated 5 out of 5
Mean looking, decently efficient, quieter than I expected
Look mean, handle very well in the wet and dry. I was in a general HST60 tire before this and expected a big increase in noise, but these are only mildly louder. Looking forward to seeing how well these age, but as of right now I'm very happy with my purchase.