Tests 70 · 1 test Owners 76 · 14 reviews
Best test result: #5 of 20 in 2020 Nordic and Studded Winter Tyre Test (dry braking)
Head-to-head
Updated
Toyo Observe GSi-6 HP vs BFGoodrich Trail-Terrain T/A — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Trail-Terrain T/A leads, 73–72 Narrow edge
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Tests – · none yet Owners 75 · 99 reviews
Best test result: #1 of 8 in 2025 ADAC All Terrain Tyre Test (snow braking)
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
76
Dry
Observe GSi-6 HP +175Why this score
Source Observe GSi-6 HP Trail-Terrain T/A Professional tests (TWG score) 74 – Reviews found online 80 78 Dry Braking (% of best) 97% 93% -
74
Wet
Observe GSi-6 HP +272Why this score
Source Observe GSi-6 HP Trail-Terrain T/A Professional tests (TWG score) 68 – Reviews found online 83 72 Wet Braking (% of best) 81% 81% -
70
Snow
Trail-Terrain T/A +878Why this score
Source Observe GSi-6 HP Trail-Terrain T/A Professional tests (TWG score) 67 – Reviews found online 76 83 Snow Braking (% of best) 99% 100% Snow Traction (% of best) 95% 100% -
73
Comfort
Observe GSi-6 HP +469Why this score
Source Observe GSi-6 HP Trail-Terrain T/A Reviews found online 77 68 -
70
Noise
Observe GSi-6 HP +268Why this score
Source Observe GSi-6 HP Trail-Terrain T/A Professional tests (TWG score) 72 – Reviews found online – 70 -
66
Treadwear
Trail-Terrain T/A +672Why this score
Source Observe GSi-6 HP Trail-Terrain T/A Reviews found online 65 76 -
78
Handling
Observe GSi-6 HP +573Why this score
Source Observe GSi-6 HP Trail-Terrain T/A Reviews found online 78 73
Scores at a glance
| Category | Toyo Observe GSi-6 HP | BFGoodrich Trail-Terrain T/A |
|---|---|---|
| Relative Score | 72 | 73 |
| Dry | 76 | 75 |
| Wet | 74 | 72 |
| Snow | 70 | 78 |
| Comfort | 73 | 69 |
| Noise | 70 | 68 |
| Treadwear | 66 | 72 |
| Handling | 78 | 73 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
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Recomputed
Headline score
72
/ 100
Observe GSi-6 HP
73
/ 100
Trail-Terrain T/A
The professional test results behind the scores
Each result is shown as % of the best tire in that test. “Same test” rows are the strictest comparison: both tires were measured side by side.
| Discipline | Category | Observe GSi-6 HP | Trail-Terrain T/A | Δ | Both? |
|---|---|---|---|---|---|
| Dry Braking | Dry | 97% #5/20 · 2020 Nordic and Studded Winter Tyre Test | 93% #8/8 · 2025 ADAC All Terrain Tyre Test | +4.0 | Different tests |
| Overall Ranking | Overall | 8% #12/20 · 2025 Studded, Friction and European Winter Tyre Test | 13% #8/8 · 2025 ADAC All Terrain Tyre Test | −4.2 | Different tests |
| Snow Braking | Snow | 99% #8/20 · 2020 Nordic and Studded Winter Tyre Test | 100% #1/8 · 2025 ADAC All Terrain Tyre Test | −1.4 | Different tests |
| Snow Traction | Snow | 95% #16/20 · 2020 Nordic and Studded Winter Tyre Test | 100% #1/8 · 2025 ADAC All Terrain Tyre Test | −4.8 | Different tests |
| Straight Aqua | Straight | 83% #9/20 · 2025 Studded, Friction and European Winter Tyre Test | 88% #7/8 · 2025 ADAC All Terrain Tyre Test | −5.4 | Different tests |
| Wet Braking | Wet | 81% #7/20 · 2020 Nordic and Studded Winter Tyre Test | 81% #8/8 · 2025 ADAC All Terrain Tyre Test | −0.2 | Different tests |
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Observe GSi-6 HP
Pros
- Exceptional traction and stability in snow and slush
- Impressive wet-weather performance and hydroplaning resistance
- Remarkably quiet ride quality for a winter tire
Cons
- Inconsistent tread life reports, with some users experiencing premature wear
- Occasional reports of structural failure or tread separation
- Slightly vague steering feel at lower speeds
Tire B Trail-Terrain T/A
Pros
- Surprisingly low road noise for an all-terrain tire
- Excellent traction and predictability in snow and winter conditions
- Good ride comfort and smoothness on paved roads
Cons
- Some users report poor wet weather traction and rear-wheel slippage
- A minority of reviewers noted high noise levels on paved tarmac
- Concerns regarding longevity with some users experiencing faster tread wear
Specs side by side
| Attribute | A · Toyo Observe GSi-6 HP | B · BFGoodrich Trail-Terrain T/A |
|---|---|---|
| Category | — | All Season All Terrain and Off Road tires |
| Vehicle type | — | SUV and 4x4 |
| Sizes available | — | 43 |
| Rim diameters | — | 15″ – 22″ |
| Tread depth | — | 11 - 13/32″ |
| UTQG | — | 660 A A - B |
| Sidewall | — | Black Side Wall - Raised Outline White Lettering |
| Max pressure | — | 44 - 51 psi |
Which one should you actually buy?
72
/ 100
Toyo Observe GSi-6 HP
73
/ 100
BFGoodrich Trail-Terrain T/A
Too close to call: Toyo Observe GSi-6 HP and BFGoodrich Trail-Terrain T/A are within 2 points overall. Toyo Observe GSi-6 HP is stronger on handling and comfort. BFGoodrich Trail-Terrain T/A is stronger on snow and treadwear.
Pick tire B
You drive through snowy winters
BFGoodrich Trail-Terrain T/A scores 78 vs 70 on snow.
Pick tire B
You want the longest tread life
BFGoodrich Trail-Terrain T/A scores 72 vs 66 on treadwear.
Pick tire A
You enjoy sharp, responsive handling
Toyo Observe GSi-6 HP scores 78 vs 73 on handling.
Pick tire A
You want the most comfortable ride
Toyo Observe GSi-6 HP scores 73 vs 69 on comfort.
Tire A · Toyo Observe GSi-6 HP
Tire B · BFGoodrich Trail-Terrain T/A
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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.
Community buzz from Reddit and forums is shown for context only — it never changes the score.