BFGoodrich All Terrain TA KO3 vs Cooper Discoverer Stronghold AT
In the 3 independent tests that ran both tires, the BFGoodrich All Terrain TA KO3 finished ahead 2 times and the Discoverer Stronghold AT once. The All Terrain TA KO3 was stronger in comfort, the Discoverer Stronghold AT in dry, wet, ice and off road.
Performance profile
16 measurements from the 3 shared tests, each tire shown as its share of the better figure in every test.
Where each is furthest ahead
All Terrain TA KO3
Discoverer Stronghold AT
Point at or tap any spoke for both tires' figures.
In each test the better of the two figures counts as 100% and the other as its share of it, so a 118 ft stop against 112 ft is 95%; each spoke averages the shared tests that recorded it.
Where each scores higher
All Terrain TA KO3
Discoverer Stronghold AT
Point at or tap any spoke for both tires' figures.
Category scores are percentiles among tires of the same season and class: 90 means this tire out-performs 90% of them, measured across every test we hold, not only the ones it appeared in.
Every measurement, side by side
Averages of the figures both tires posted in the same tests. The gap is the average of each test's own gap, so figures from different cars and years are never mixed. Wins count the tests in which each tire did better.
| Measurement | All Terrain TA KO3 | Gap | Discoverer Stronghold AT | Wins |
|---|---|---|---|---|
| Dry Discoverer Stronghold AT ahead | ||||
| Dry Braking ft | 141 | 1.4% | 139 | 0-1 |
| Subj. Dry Handling pts | scored | 5.3% | scored | 0-1 |
| Dry Circle g | 0.69 | 1.4% | 0.7 | 0-1 |
| Subj. Road Score pts | scored | 3.4% | scored | 1-0 |
| Wet Discoverer Stronghold AT ahead | ||||
| Wet Braking ft | 184 | 2.2% | 180 | 0-1 |
| Wet Handling s | 40.65 | 2.1% | 39.81 | 0-1 |
| Wet Circle g | 0.51 | 3.9% | 0.53 | 0-1 |
| Snow Level | ||||
| Snow Braking ft | 72 | 0.2% | 72 | 1-0 |
| Snow Traction ft | 46 | 2% | 47 | 1-0 |
| Snow Handling s | 28.25 | 4.8% | 26.9 | 0-1 |
| Subj. Snow Handling pts | scored | 13.4% | scored | 0-1 |
| Ice Discoverer Stronghold AT ahead | ||||
| Ice Braking ft | 53 | 1.8% | 52 | 0-1 |
| Ice Traction s | 6.23 | 7.7% | 5.75 | 0-1 |
| Off road Discoverer Stronghold AT ahead | ||||
| Subj. Dirt Handling pts | scored | 11.1% | scored | 0-1 |
| Comfort All Terrain TA KO3 ahead | ||||
| Subj. Comfort pts | scored | 13.9% | scored | 2-0 |
| Subj. Noise pts | scored | 20.1% | scored | 2-0 |
Braking distances and lap times are better when lower; speeds, wear and grip figures when higher. A test's figures are its own: sizes, cars, surfaces and temperatures differ from one to the next, which is why the averages here are only ever of tests the two tires shared.
Head to head in 3 tests, 2024 to 2026
Each row is one published test in which both tires ran on the same car, in the same size, on the same day. The line is the whole field, winner on the left.
| Test | All Terrain TA KO3 | Field | Discoverer Stronghold AT |
|---|---|---|---|
| 2026 Tire Rack All Terrain Tire Snow Test | P7 of 30 | P1 of 30 | |
| Which is Best? BFGoodrich All Terrain KO3 vs Bridgestone AT Ascent vs Cooper Stronghold AT | P1 of 3 | P3 of 3 | |
| 2024 Tire Rack All Terrain Tires On-Road Test | P7 of 12 | P10 of 12 |
All Terrain TA KO3 vs Discoverer Stronghold AT: your questions
Is the BFGoodrich All Terrain TA KO3 or the Cooper Discoverer Stronghold AT the better tire?
In the 3 independent tests that ran both tires, the BFGoodrich All Terrain TA KO3 finished ahead 2 times and the Discoverer Stronghold AT once. On the Tire Reviews Score, which weighs every test and review we hold, the All Terrain TA KO3 scores 7.1 and the Discoverer Stronghold AT 8.2 out of 10.
Which is better in the wet, the All Terrain TA KO3 or the Discoverer Stronghold AT?
The Discoverer Stronghold AT led 3 of the 3 wet measurements the shared tests recorded.
Which is better in the dry?
The Discoverer Stronghold AT led 3 of the 4 dry measurements the shared tests recorded.
Which is better in snow?
Across the shared tests the snow measurements are split 2-2 between the All Terrain TA KO3 and the Discoverer Stronghold AT.
Which is quieter and more comfortable?
Owners rate comfort 7.8/10 for the All Terrain TA KO3 and 8/10 for the Discoverer Stronghold AT.
What do owners say?
Owners rate the All Terrain TA KO3 78% from 16 reviews and the Discoverer Stronghold AT 92% from 2.
More comparisons with these tires
vs 
BFGoodrich All Terrain TA KO3 vs Falken Wildpeak AT4W
2-2 in 4 shared tests
vs 
BFGoodrich All Terrain TA KO3 vs Nokian Outpost nAT
0-2 in 2 shared tests
vs 
BFGoodrich All Terrain TA KO3 vs Pirelli Scorpion XTM AT
0-2 in 2 shared tests
vs 
BFGoodrich All Terrain TA KO3 vs Goodyear Wrangler DuraTrac RT
3-0 in 3 shared tests
vs 
BFGoodrich All Terrain TA KO3 vs Nitto Recon Grappler AT
3-0 in 3 shared tests
Run either of these?
Your review is the part of this page no test can supply: how the tire wore, how it aged, what it was like in the rain in year three. It takes about five minutes.
Review the All Terrain TA KO3 Review the Discoverer Stronghold AT
Where this data comes from
Finishing positions and measurements are transcribed from each published test. A test only counts here when both tires ran in it, so every figure was recorded on the same car, size and day as the one it is compared to.
About the TR Score
The Tire Reviews Score rates each tire out of 10 from every independent test result and vetted owner review we hold, so two tires can be compared even before a test has run them together.
Who does the testing
Every test published as a Tire Reviews test is run by Jonathan Benson, who has been testing tires independently since 2007.