Tests – · none yet Owners 68 · 99 reviews
Head-to-head
Updated
Cooper Discoverer HT3 vs Bridgestone Dueler H/T D840 — Compared
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 0 + 0 road tests and 99 + 1 owner reviews. How we score
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Tests – · none yet Owners – · 1 review (needs 5)
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
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68
Dry
No comparison–Why this score
Source Discoverer HT3 Dueler H/T D840 Professional tests (TWG score) ≈ 68 (est.) – Reviews found online 69 – Discoverer HT3: 60% × 68.3 (est.) + 40% × 68.7 = 68
No road tests of dry for Discoverer HT3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).
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75
Wet
No comparison–Why this score
Source Discoverer HT3 Dueler H/T D840 Professional tests (TWG score) ≈ 74 (est.) – Reviews found online 76 – Discoverer HT3: 60% × 73.6 (est.) + 40% × 76 = 75
No road tests of wet for Discoverer HT3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
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64
Snow
No comparison–Why this score
Source Discoverer HT3 Dueler H/T D840 Professional tests (TWG score) ≈ 67 (est.) – Reviews found online 59 – Discoverer HT3: 60% × 66.9 (est.) + 40% × 59.1 = 64
No road tests of snow for Discoverer HT3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).
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60
Comfort
No comparison–Why this score
Source Discoverer HT3 Dueler H/T D840 Professional tests (TWG score) ≈ 66 (est.) – Reviews found online 56 – Discoverer HT3: 40% × 66.2 (est.) + 60% × 56.1 = 60
No road tests of comfort for Discoverer HT3. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
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67
Noise
No comparison–Why this score
Source Discoverer HT3 Dueler H/T D840 Professional tests (TWG score) ≈ 66 (est.) – Reviews found online 68 – Discoverer HT3: 60% × 66.5 (est.) + 40% × 67.8 = 67
No road tests of noise for Discoverer HT3. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.
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68
Treadwear
No comparison–Why this score
Source Discoverer HT3 Dueler H/T D840 Professional tests (TWG score) ≈ 67 (est.) – Reviews found online 69 – Discoverer HT3: 60% × 67.4 (est.) + 40% × 68.9 = 68
No road tests of treadwear for Discoverer HT3. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).
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66
Handling (owners)
No comparison–Why this score
Source Discoverer HT3 Dueler H/T D840 Reviews found online 66 –
Scores at a glance
| Category | Cooper Discoverer HT3 | Bridgestone Dueler H/T D840 |
|---|---|---|
| Relative Score | 68 | – |
| Dry | 68 | – |
| Wet | 75 | – |
| Snow | 64 | – |
| Comfort | 60 | – |
| Noise | 67 | – |
| Treadwear | 68 | – |
| Handling (owners) | 66 | – |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
68
/ 100
Discoverer HT3
–
/ 100
Dueler H/T D840
Only categories both tires have data for count toward the headline score.
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Discoverer HT3
Pros
- Smooth and comfortable ride quality
- Excellent performance and stability when towing heavy loads or fifth wheels
- Good traction in rain and winter conditions
Cons
- Some users report higher-than-expected road noise on certain vehicles
- Treadwear may fall short of advertised or expected mileage milestones for some drivers
- Isolated reports of structural failures or blowouts
Tire B Dueler H/T D840
Not enough owner reviews yet to extract themes.
Specs side by side
| Attribute | A · Cooper Discoverer HT3 | B · Bridgestone Dueler H/T D840 |
|---|---|---|
| Category | All-Season tire | All-Season tire |
| Vehicle type | SUV and 4x4 | SUV and 4x4 |
| Sizes available | 17 | — |
| Rim diameters | 15″ – 20″ | — |
| Tread depth | 14 - 15/32″ | — |
| Treadwear warranty | 50,000 mi | — |
| Sidewall | Black Side Wall | — |
| Max pressure | 50 - 83 psi | — |
Which one should you actually buy?
68
/ 100
Cooper Discoverer HT3
–
/ 100
Bridgestone Dueler H/T D840
Only Cooper Discoverer HT3 has enough test and review data for a Relative Score, so there is no head-to-head winner yet.
Tire A · Cooper Discoverer HT3
Tire B · Bridgestone Dueler H/T D840
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How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.
Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.
Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology