Tests 67 · 4 tests Owners 75 · 131 reviews
Best test result: #3 of 20 in 2018 Auto Bild 15 inch Summer Tyre Test (wear)
Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 4 + 0 road tests and 131 + 22 owner reviews. How we score
Too close to call: g-Grip 71, SP Touring R1 70.
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Tests 67 · 4 tests Owners 75 · 131 reviews
Best test result: #3 of 20 in 2018 Auto Bild 15 inch Summer Tyre Test (wear)
Tests – · none yet Owners 70 · 22 reviews
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
| Source | g-Grip | SP Touring R1 |
|---|---|---|
| Professional tests (TWG score) · 4 / – tests | 64 | ≈ 69 (est.) |
| Reviews found online | 76 | 70 |
g-Grip: 60% × 63.9 + 40% × 76.1 = 69
SP Touring R1: 60% × 69 (est.) + 40% × 70.3 = 70
No road tests of dry for SP Touring R1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.42).
| Source | g-Grip | SP Touring R1 |
|---|---|---|
| Professional tests (TWG score) · 4 / – tests | 66 | ≈ 71 (est.) |
| Reviews found online | 74 | 71 |
g-Grip: 60% × 66.3 + 40% × 73.9 = 69
SP Touring R1: 60% × 70.8 (est.) + 40% × 70.8 = 71
No road tests of wet for SP Touring R1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).
| Source | g-Grip | SP Touring R1 |
|---|---|---|
| Professional tests (TWG score) | ≈ 70 (est.) | ≈ 69 (est.) |
| Reviews found online | 73 | 66 |
g-Grip: 40% × 69.9 (est.) + 60% × 73.1 = 72
SP Touring R1: 40% × 68.6 (est.) + 60% × 66.3 = 67
No road tests of comfort for g-Grip or SP Touring R1. The test half is the tested tires’ average (69): owners’ comfort ratings barely follow the road tests.
| Source | g-Grip | SP Touring R1 |
|---|---|---|
| Professional tests (TWG score) · 2 / – tests | 62 | – |
| Reviews found online | ≈ 67 (est.) | – |
g-Grip: 60% × 62.4 + 40% × 66.6 (est.) = 64
No owner ratings of noise for g-Grip. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.
| Source | g-Grip | SP Touring R1 |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 73 | ≈ 68 (est.) |
| Reviews found online | 76 | 71 |
g-Grip: 60% × 73.3 + 40% × 75.8 = 74
SP Touring R1: 60% × 67.8 (est.) + 40% × 70.8 = 69
No road tests of treadwear for SP Touring R1. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).
| Source | g-Grip | SP Touring R1 |
|---|---|---|
| Reviews found online | 73 | 72 |
| Source | g-Grip | SP Touring R1 |
|---|---|---|
| Professional tests (TWG score) · 1 / – tests | 71 | – |
| Category | BFGoodrich g-Grip | Dunlop SP Touring R1 |
|---|---|---|
| Relative Score | 71 | 70 |
| Dry | 69 | 70 |
| Wet | 69 | 71 |
| Comfort | 72 | 67 |
| Noise | 64 | – |
| Treadwear | 74 | 69 |
| Handling (owners) | 73 | 72 |
| Efficiency | 71 | – |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.
g-Grip
SP Touring R1
Only categories both tires have data for count toward the headline score.
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
| Attribute | A · BFGoodrich g-Grip | B · Dunlop SP Touring R1 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 32 | — |
| Rim diameters | 14″ – 19″ | — |
BFGoodrich g-Grip
Dunlop SP Touring R1
Too close to call: BFGoodrich g-Grip and Dunlop SP Touring R1 are within 2 points overall. BFGoodrich g-Grip is stronger on comfort and treadwear.
BFGoodrich g-Grip scores 72 vs 67 on comfort.
BFGoodrich g-Grip scores 74 vs 69 on treadwear.
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Neither, by our numbers: 69 vs 71 on the wet score, within 3 points.
Neither, by our numbers: 69 vs 70 on the dry score, within 3 points.
BFGoodrich g-Grip, 72 vs 67 on our comfort score.
BFGoodrich g-Grip, 74 vs 69 on our treadwear score.
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