tirewheelguide
Head-to-head Updated

Dunlop Grandtrek ST20 vs Hankook Dynapro HT RH12 — 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 + 1 road tests and 9 + 910 owner reviews. How we score

Grandtrek ST20 leads, 70–68 Narrow edge

Check price on Amazon · Grandtrek ST20 or Dynapro HT RH12 on Amazon
Add your size for an exact match
/R

Both Amazon links then search this exact size.

TireWheelGuide may earn a commission from purchases made through these links.

Dunlop Grandtrek ST20
Tire ADunlop

Grandtrek ST20

All Season

± 8Provisional

Tests – · none yet Owners 71 · 9 reviews

Hankook Dynapro HT RH12
Tire BHankook

Dynapro HT RH12

All-Season tire

± 8

Tests – · 1 test Owners 67 · 910 reviews

“I'm having these tires put on right now. I went with the dynapro HT in a 265/65/17”

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 69

    Dry

    Level
    69
    Why this score
    SourceGrandtrek ST20Dynapro HT RH12
    Professional tests (TWG score)≈ 68 (est.)≈ 69 (est.)
    Reviews found online6970

    Grandtrek ST20: 60% × 68.4 (est.) + 40% × 69 = 69

    Dynapro HT RH12: 60% × 68.7 (est.) + 40% × 69.8 = 69

    No road tests of dry for Grandtrek ST20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

    No road tests of dry for Dynapro HT RH12. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 72

    Wet

    Grandtrek ST20 +3
    69
    Why this score
    SourceGrandtrek ST20Dynapro HT RH12
    Professional tests (TWG score)≈ 72 (est.)≈ 70 (est.)
    Reviews found online7369

    Grandtrek ST20: 60% × 72 (est.) + 40% × 73.1 = 72

    Dynapro HT RH12: 60% × 69.6 (est.) + 40% × 68.7 = 69

    No road tests of wet for Grandtrek ST20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

    No road tests of wet for Dynapro HT RH12. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. –

    Snow

    No comparison
    62
    Why this score
    SourceGrandtrek ST20Dynapro HT RH12
    Professional tests (TWG score)–≈ 66 (est.)
    Reviews found online–55

    Dynapro HT RH12: 60% × 65.7 (est.) + 40% × 55.4 = 62

    No road tests of snow for Dynapro HT RH12. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.32).

  4. 68

    Comfort

    Grandtrek ST20 +1
    67
    Why this score
    SourceGrandtrek ST20Dynapro HT RH12
    Professional tests (TWG score)≈ 68 (est.)≈ 68 (est.)
    Reviews found online6766

    Grandtrek ST20: 40% × 68.3 (est.) + 60% × 67.1 = 68

    Dynapro HT RH12: 40% × 68.2 (est.) + 60% × 66.3 = 67

    No road tests of comfort for Grandtrek ST20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

    No road tests of comfort for Dynapro HT RH12. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. –

    Noise

    No comparison
    71
    Why this score
    SourceGrandtrek ST20Dynapro HT RH12
    Professional tests (TWG score)–≈ 66 (est.)
    Reviews found online–77

    Dynapro HT RH12: 60% × 66.4 (est.) + 40% × 77 = 71

    No road tests of noise for Dynapro HT RH12. The test half is the tested tires’ average (66): owners’ noise ratings barely follow the road tests.

  6. 69

    Treadwear

    Grandtrek ST20 +4
    65
    Why this score
    SourceGrandtrek ST20Dynapro HT RH12
    Professional tests (TWG score) · – / 1 tests≈ 68 (est.)64
    Reviews found online7166

    Grandtrek ST20: 60% × 68.2 (est.) + 40% × 71.2 = 69

    Dynapro HT RH12: 60% × 64.2 + 40% × 65.8 = 65

    No road tests of treadwear for Grandtrek ST20. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

  7. 71

    Handling (owners)

    Grandtrek ST20 +4
    67
    Why this score
    SourceGrandtrek ST20Dynapro HT RH12
    Reviews found online7167
Scores at a glance
CategoryDunlop Grandtrek ST20Hankook Dynapro HT RH12
Relative Score 70 68
Dry 69 69
Wet 72 69
Snow – 62
Comfort 68 67
Noise – 71
Treadwear 69 65
Handling (owners) 71 67

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

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Recomputed
Headline score
± 8

Grandtrek ST20

± 8

Dynapro HT RH12

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 Grandtrek ST20

Pros

  • Impressive tread life and overall durability
  • Consistent and predictable handling in mixed weather conditions
  • Strong performance for light off-road and towing applications

Cons

  • Noticeable reduction in wet grip at lower tread depths (below 3mm)
  • Tendency for sidewalls to develop cracks or crazing over time
  • Increased road noise on rough or concrete surfaces
All owner themes in the Grandtrek ST20 review

Tire B Dynapro HT RH12

Not enough owner reviews yet to extract themes.

What real owners are saying

From Reddit, forums and review threads. Not part of our score

Tire A

Dunlop Grandtrek ST20

We haven't collected enough community discussion about this tire yet.

Tire B

Hankook Dynapro HT RH12

Positive

The community generally views the Hankook Dynapro HT RH12 as a reliable, comfortable highway all-season tire that offers good value compared to premium alternatives. Users note that the tires are quiet, track straight, and provide solid wet and dry grip, making them a popular choice for trucks, SUVs, and daily commuting.

ridgelineownersclub.com ·2012-10-28

“I'm having these tires put on right now. I went with the dynapro HT in a 265/65/17”
r/denverlist ·2025-12-09

“For Sale: 3X Used Hankook Dynapro HT RH12 Tire - 205/75R16C Description: 3 used Hankook Dynapro HT (RH12) highway all-season tire is available. This model is designed for vans, pickups, and sport utility vehicles, combining long treadwear, good ride comfort, and all-season traction. Brand: Hankook Model: Dynapro HT (RH12) Size: 205/75R16C Condition: Used/Part-worn. The tire has been previously used. Features: The tire features a high-grip silica compound for improved wet and dry traction and a reinforced under-tread to prevent internal damage from impacts. Price: $300 Location: South Denver, Metro area delivery for $50 Read more”
bobistheoilguy.com ·2018-07-14

“4 new Hankook Dynapro HT RH12 now installed in the CRV. Fresh production date (0618) and now made in the US. Thread looks slightly different than the replaced ones. They are quiet, track straight, no balancing issues and have a nice grip. Ride is a bit jumpy, not too much. $550 OTD with a $50 rebate. Son is happy.”
Top themes
#highway driving comfort#low road noise#good wet and dry grip#competitive pricing#straight line tracking#SUV and truck compatibility#treadwear and longevity

Based on 8 community posts

Specs side by side

Attribute A · Dunlop Grandtrek ST20 B · Hankook Dynapro HT RH12
CategoryAll SeasonAll-Season tire
Vehicle typeSUV and 4x4—
Sizes available324
Rim diameters16″ – 17″15″ – 22″
Tread depth—14/32″
UTQG300 B A - B—
Treadwear warranty—40,000 mi
Sidewall—Blackwall
Max pressure—54 psi
Sizes in common00

Which one should you actually buy?

Dunlop Grandtrek ST20

Hankook Dynapro HT RH12

Narrow edge: Dunlop Grandtrek ST20 — better treadwear and wet. It leads or ties in every category we score. Dunlop Grandtrek ST20 rests on little evidence so far (0 tests, 9 reviews), so read this result as provisional.

Pick tire A You want the longest tread life

Dunlop Grandtrek ST20 scores 69 vs 65 on treadwear.

Pick tire A Your priority is wet-weather safety

Dunlop Grandtrek ST20 scores 72 vs 69 on wet.

Tire A · Dunlop Grandtrek ST20
Check price on Amazon
Tire B · Hankook Dynapro HT RH12
Check price on Amazon

TireWheelGuide may earn a commission from purchases made through these links.

Grandtrek ST20 or Dynapro HT RH12?

Which is better in the wet, Grandtrek ST20 or Dynapro HT RH12?

Dunlop Grandtrek ST20, 72 vs 69 on our wet score.

Which grips better on dry roads, Grandtrek ST20 or Dynapro HT RH12?

Neither, by our numbers: 69 vs 69 on the dry score, within 3 points.

Which is more comfortable, Grandtrek ST20 or Dynapro HT RH12?

Neither, by our numbers: 68 vs 67 on the comfort score, within 3 points.

Which lasts longer, Grandtrek ST20 or Dynapro HT RH12?

Dunlop Grandtrek ST20, 69 vs 65 on our treadwear score.

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