Yokohama Geolandar A/T4 G018 (275/55R21)
Yokohama

Geolandar A/T4 G018

275/55R21 · 32.9" Fits R1 All-Terrain 3PMS Rated

An all-terrain tire that fits the R1, around $456 per tire ($1,824 a set), returning 2.40 mi/kWh across 3 owner vehicles on Rivian Roamer.

Rated 4 out of 5 4.0 · 1 rating
Real-world efficiency
2.40 mi/kWh
4,665 mi tracked · 3 vehicles
Average price
$456
per tire · $1,824 / set of 4
Mileage warranty
Not listed
by the manufacturer
Load index
116
R1 minimum is 116
View at SimpleTire Compare

Specifications

Size & Fitment
Size 275/55R21 (32.9")
Load Index 116
Load Range XL
Max Load 2,756 lb
Speed Rating H (130)
Max PSI 50
Construction & Performance
Category All-Terrain
Weight 44.0 lb
Tread Depth 14/32
UTQG 660 A B
3PMS Rated Yes

Other sizes of this tire

Yokohama Geolandar A/T4 G018 255/70R18 · $255 · No efficiency data Fits R2 · 3rd-party wheels Yokohama Geolandar A/T4 G018 275/60R20 · $343 · No efficiency data Fits R1 Yokohama Geolandar A/T4 G018 275/65R20 · $369 · No efficiency data Fits R1

Similar tires in 275/55R21

Best real-world efficiency first.
Hankook iON HT 275/55R21 · $296 · 2.24 mi/kWh Fits R1 Michelin Defender LTX M/S2 275/55R21 · $405 · 2.22 mi/kWh Fits R1 Bridgestone Alenza Prestige 275/55R21 · $358 · 2.18 mi/kWh Fits R1 Pirelli Scorpion Verde All Season 275/55R21 · $451 · 2.18 mi/kWh Fits R1 Yokohama Geolandar H/T4 275/55R21 · $350 · No efficiency data Fits R1

Owner Reviews (1)

Write a Review
Peter Aug 2026 Rated 4 out of 5
Great 21" tire adding AT + 3Peak without too much efficiency hit
Like many R1T owners with 21" wheels, I considered swapping to 20" for broader tire selection or staying on 21" but going with Michelin Defender AS. Then I saw the Yokohama and it met my desire for better snow performance with at least moderate off road potential. Geolanders were installed in March 2026 in Massachusetts starting with cool late winter temps to hot summer now. Increase in tire noise is very modest. No snow driving yet, but fire roads and handling is good. Stability on highway is good with truck alone or pulling our 1500-2000 lb teardrop setup. Here is a comparison of efficiency seen: Overall w/o trailer w/teardrop trailer Pirelli Scorpion All Season 25,000 mi – 2.26 mi/kWh 19,814 mi – 2.48 mi/kWh 5186 mi – 1.70 mi/kWh Yokohama Geolander A/T4 4485 mi – 2.24 mi/kWh 3845 mi – 2.39 mi/kWh 640 mi – 1.61 mi/kWh I just did a 700 mi trip with the truck alone Boston-Phili and back in 80-90F temps. That netted 2.51 mi/kWh.