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Cooper Discoverer Stronghold A/T

Off-Road All-Terrain All Season Tested by Tyre Reviews

Goodyear has introduced the Cooper Discoverer Stronghold AT, a new all-terrain tyre in its Cooper Discoverer line. Designed for tough terrain and heavy loads, it features 3D sipe technology for stability, wide grooves for traction on various surfaces, and carries a Three-Peak Mountain Snowflake Designation for snow performance. The tyre offers a 60,000-mile tread wear warranty and a 45-day test drive guarantee, available in 28 sizes for popular pick-up trucks and off-road vehicles.

The quick answer

Owners say 93% from 2 owner reviews Read the reviews
Tests say 5th average finish across 3 independent tests · 1 wins Latest: P1 of 30 · 2026 See every test
Strengths & weaknesses Off road, Wet Ice, Comfort Relative to its rivals across every test we hold

Built from every independent test result and vetted owner review we hold for this tyre - the evidence is all further down the page. Data updated October 2026.

  • 2owner reviews
  • 1,200miles driven
  • 3professional tests
Cooper Discoverer Stronghold A/T 3 photos

Tyre Reviews Score

Cooper Discoverer Stronghold A/T

8.2/10

Better than 63% of all-terrain tyres

  • Medium Confidence
  • 3 tests
  • 2 owner reviews
Scores of the 42 all-terrain tyres we have tested

How this score is built

Better than Weight
Independent tests3 tests · 2 publications · 2024-2026 63% 100%
Owner reviewsFewer than 5 reviews, so they do not count yet – 0%
Combined 63% 8.2

A fixed curve turns the combined figure into the 0 to 10 score, so roughly the top 10% of a group score 9 or more.

Category by category

How it compares with other all-terrain tyres in each area, and how much each area counts. 50 is the middle of the group.

Category Better than Weight Tests
WetBraking, handling and aquaplaning in the wet 54% 28% 1
DryBraking and handling on dry roads 49% 22% 2
SnowBraking, traction and handling on snow 50% 20% 2
Off roadTraction and handling on gravel, grass, sand and mud 85% 15% 1
IceBraking, traction and handling on ice 38% 12% 1
ComfortNoise and ride comfort 10% 5% 2

Faded bars rest on one or two tests.

By discipline

The same results grouped by what the tyre was doing. They are not counted a second time.

HandlingEvery handling test, on any surface 75% 3
BrakingEvery braking test, on any surface 42% 2
TractionEvery traction test, on any surface 38% 1

Confidence

  1. Limited
  2. Medium
  3. High

Its own test results decide 83% of the test figure. The other 17% is the average for its group, and it shrinks as more tests arrive.

High needs at least 3 tests, with its own results deciding 90% or more. Medium needs 2 tests and 70%. Anything less is Limited: expect the number to move as tests arrive.

The tests behind it

  1. 2026 2026 Tire Rack All Terrain Tyre Snow Test Tire Rack · 265/70 R17 P1 / 30
  2. 2025 Which is Best? BFGoodrich All Terrain KO3 vs Bridgestone AT Ascent vs Cooper Stronghold AT Tyre Reviews · 275/65 R18 P3 / 3
  3. 2024 2024 Tire Rack All Terrain Tyres On-Road Test Tire Rack · 265/70 R17 P10 / 12
All Tests
View Test Results

Tested 3 times by independent publications, the Cooper Discoverer Stronghold A/T has taken 1 test wins with an average finish of 5th.

3 Tests
1 Test Wins
5th Average
1st Best
10th Worst
Finishing position in each test1stLast20242026

Finishing position in each test

The latest test

2026 Tire Rack All Terrain Tyre Snow Test P1 of 30

The Cooper Discoverer Stronghold AT, a 3PMSF off-road all-terrain, topped Tire Rack's snow ranking. The drivers' preference rested on how it behaved rather than on outright grip, as its measured snow and ice results were mid-field at best, so it suits a driver who values a predictable truck in winter more than the shortest stop.

Strong: Subj. Snow Handling

YearTestResultAward
20262026 Tire Rack All Terrain Tyre Snow TestTire Rack · 265/70 R17P1 / 30
2025Which is Best? BFGoodrich All Terrain KO3 vs Bridgestone AT Ascent vs Cooper Stronghold ATTyre Reviews · 275/65 R18P3 / 3Tested by Tyre Reviews
20242024 Tire Rack All Terrain Tyres On-Road TestTire Rack · 265/70 R17P10 / 12

On the full record: Record by disciplineHead-to-head recordEvery published verdict

Videos

BFGoodrich AT KO3 vs Bridgestone AT Ascent vs Cooper Stronghold AT - Which Should You Buy?

BFGoodrich AT KO3 vs Bridgestone AT Ascent vs Cooper Stronghold AT - Which Should You Buy?

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 Compare 1 shared test
BFGoodrichBFGoodrich All Terrain TA KO2
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CooperCooper Discoverer AT3 XLT
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Running Costs
View Test

In 275/65 R18, the Cooper Discoverer Stronghold AT is projected to cost $22.87 per 1,000 miles to buy and run - about $572 over 25,000 miles - based on its US price and the manufacturer's treadwear warranty, from the Which is Best? BFGoodrich All Terrain KO3 vs Bridgestone AT Ascent vs Cooper Stronghold AT.

Tyre life here is the manufacturer's treadwear warranty, NOT measured wear - treat it as the maker's promise, not a test result.
Cooper Discoverer Stronghold AT$22.87
Bridgestone Dueler AT Ascent$22.93
BFGoodrich All Terrain TA KO3$25.45
cost per 1,000 miles
Tyre life is the manufacturer's treadwear warranty, not measured wear. Assumes $80 fitting per set of four. US prices are from the time of the 2025 test; financing costs are excluded.
Dimensions & Label Scores
View All

Size Range28 sizes available

225-315Width55-85Profile16-20Rim2024First On Market

US ratingsUTQG grade and the maker's mileage warranty

Not gradedUTQG grade16-17/32"Tread depth (new)60,000milesMileage warranty

Popular sizes285/75 R18275/85 R17
Frequently Asked Questions
How good is the Cooper Discoverer Stronghold AT in the wet?
Across the 1 wet-braking test it has featured in, the Cooper Discoverer Stronghold AT stops 1.7% longer than premium rivals and 1.8% longer than mid-range rivals. It has a Tyre Reviews wet score of 54/100, and owners rate it 9.5/10 in the wet from 2 reviews.
How good is the Cooper Discoverer Stronghold AT in the dry?
Across the 1 dry-braking test it has featured in, the Cooper Discoverer Stronghold AT stops 1.2% longer than premium rivals and 2.6% longer than mid-range rivals. It has a Tyre Reviews dry score of 49/100, and owners rate it 10/10 in the dry from 2 reviews.
How good is the Cooper Discoverer Stronghold AT in the snow?
Across the 1 snow-braking test it has featured in, the Cooper Discoverer Stronghold AT stops 4.1% shorter than premium rivals, 9.9% shorter than mid-range rivals and 6% shorter than budget rivals. Across the 1 snow-traction test, it is 10.6% worse than premium rivals, 2.4% worse than mid-range rivals and 12.8% worse than budget rivals. It has a Tyre Reviews snow score of 50/100.
How good is the Cooper Discoverer Stronghold AT on ice?
Across the 1 ice-braking test it has featured in, the Cooper Discoverer Stronghold AT stops 9.8% longer than premium rivals, 3% longer than mid-range rivals and 10.6% longer than budget rivals. Across the 1 ice-traction test, it is 3.8% better than premium rivals, 7.5% better than mid-range rivals and 5.4% better than budget rivals. It has a Tyre Reviews ice score of 38/100.
What treadwear rating and mileage warranty does the Cooper Discoverer Stronghold AT have?
The Cooper Discoverer Stronghold AT has no UTQG treadwear grade: winter and light-truck sizes are exempt. Cooper backs it with a 60,000-mile limited treadwear warranty. New tread depth is 16-17/32" (12.7-13.5 mm), depending on size.
More questions about the Cooper Discoverer Stronghold AT (1)
How much does the Cooper Discoverer Stronghold AT cost to run?
In 275/65 R18, the Cooper Discoverer Stronghold AT is projected to cost $22.87 per 1,000 miles to buy and run - about $572 over 25,000 miles - based on its US price and the manufacturer's treadwear warranty, from the Which is Best? BFGoodrich All Terrain KO3 vs Bridgestone AT Ascent vs Cooper Stronghold AT. Of the tyres compared in that test, that makes it the cheapest to run.
Owner Questions
Ask a question
Sorry, we don't currently have any questions and answers for the Cooper Discoverer Stronghold AT. Why not submit a question to our tyre experts using the form below!

Cooper Discoverer Stronghold AT Owner Reviews

Review this tyre

Owner ratings averaged from 2 ratings

  • Owner score 93%
  • Dry Grip 100%
  • Wet Grip 95%
  • Handling 95%
  • Road Feedback 85%
  • Comfort 80%

All 2 Cooper Discoverer Stronghold AT reviews

Score spread across 2 written reviews
86%
Member
  • Ford F 150
  • 275/85 R17
  • 1,000 miles
  • A Combination of Roads
  • Average
Haven't had these for long, but have taken them on a wide variety of surfaces. So far very pleased with them and look forward to see how well they perform in winter conditions. I was looking for a good all around LT AT tire that wouldn't fall flat in inclement weather, I think these fit that well.
This owner's scores
  • Dry Grip 10
  • Wet Grip 9
  • Road Feedback 8
  • Handling 9
  • Comfort 7
Helpful 211
97%
Member
So far with limited use on a Ram 1500 pickup the Stronghold has been outstanding. Cannot wait to get it out in the snow hunting. I’m going to buy a set for my Ford F150 when its tires need replaced. Cooper Tires are fantastic USA made.
This owner's scores
  • Dry Grip 10
  • Wet Grip 10
  • Road Feedback 9
  • Handling 10
  • Comfort 9
  • Buy again 10
Helpful 967

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