Cooper Discoverer Road Trail AT vs Bridgestone Dueler AT Ascent
The Cooper Discoverer Road Trail AT and the Bridgestone Dueler AT Ascent have met in 2 independent tests and the record is level at 1-1. The Discoverer Road Trail AT was stronger in dry, wet and comfort, the Dueler AT Ascent in snow and ice.
Performance profile
14 measurements from the 2 shared tests, each tire shown as its share of the better figure in every test.
Where each is furthest ahead
Discoverer Road Trail AT
Dueler AT Ascent
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
Discoverer Road Trail AT
Dueler AT Ascent
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.
Where owners rate each higher
Discoverer Road Trail AT
Dueler AT Ascent
Point at or tap any spoke for both tires' figures.
Owners rate the Discoverer Road Trail AT 87% from 7 reviews and the Dueler AT Ascent 80% from 4. Each spoke is one question owners answer out of 10; reviews are vetted by hand before publication.
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 | Discoverer Road Trail AT | Gap | Dueler AT Ascent | Wins |
|---|---|---|---|---|
| Dry Discoverer Road Trail AT ahead | ||||
| Dry Braking ft | 134 | 2.2% | 137 | 1-0 |
| Dry Circle g | 0.74 | 4.2% | 0.71 | 1-0 |
| Subj. Road Score pts | scored | = | scored | 0-0 |
| Wet Discoverer Road Trail AT ahead | ||||
| Wet Braking ft | 172 | 2.9% | 167 | 0-1 |
| Wet Handling s | 37.28 | 2.4% | 38.2 | 1-0 |
| Wet Circle g | 0.59 | 1.7% | 0.58 | 1-0 |
| Snow Dueler AT Ascent ahead | ||||
| Snow Braking ft | 72 | 5.2% | 68 | 0-1 |
| Snow Traction ft | 42 | 13.6% | 37 | 0-1 |
| Snow Handling s | 27.69 | 5.2% | 26.25 | 0-1 |
| Subj. Snow Handling pts | scored | 10.4% | scored | 0-1 |
| Ice Dueler AT Ascent ahead | ||||
| Ice Braking ft | 44 | 8.7% | 40 | 0-1 |
| Ice Traction s | 5.79 | 5.4% | 5.48 | 0-1 |
| Comfort Discoverer Road Trail AT ahead | ||||
| Subj. Comfort pts | scored | 11.5% | scored | 1-0 |
| Subj. Noise pts | scored | 3.7% | scored | 1-0 |
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 2 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 | Discoverer Road Trail AT | Field | Dueler AT Ascent |
|---|---|---|---|
| 2026 Tire Rack All Terrain Tire Snow Test | P9 of 30 | P3 of 30 | |
| 2024 Tire Rack All Terrain Tires On-Road Test | P1 of 12 | P4 of 12 |
Discoverer Road Trail AT vs Dueler AT Ascent: your questions
Is the Cooper Discoverer Road Trail AT or the Bridgestone Dueler AT Ascent the better tire?
The Cooper Discoverer Road Trail AT and the Bridgestone Dueler AT Ascent have met in 2 independent tests and the record is level at 1-1. On the Tire Reviews Score, which weighs every test and review we hold, the Discoverer Road Trail AT scores 8.5 and the Dueler AT Ascent 9.5 out of 10.
Which is better in the wet, the Discoverer Road Trail AT or the Dueler AT Ascent?
The Discoverer Road Trail AT led 2 of the 3 wet measurements the shared tests recorded.
Which is better in the dry?
The Discoverer Road Trail AT led 2 of the 3 dry measurements the shared tests recorded.
Which is better in snow?
The Dueler AT Ascent led 4 of the 4 snow measurements the shared tests recorded.
Which is quieter and more comfortable?
Owners rate comfort 9.4/10 for the Discoverer Road Trail AT and 8.3/10 for the Dueler AT Ascent.
What do owners say?
Owners rate the Discoverer Road Trail AT 87% from 7 reviews and the Dueler AT Ascent 80% from 4.
More comparisons with these tires
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 Discoverer Road Trail AT Review the Dueler AT Ascent
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.