GT-Radial WinterPro2 vs Semperit Speed Grip 5: the full picture
This comparison is built only from published independent tests — no manufacturer claims and no sponsored reviews. Between them, the GT-Radial WinterPro2 and Semperit Speed Grip 5 appear in 14 tests, 1 of which put both tires on the same track on the same day. Head-to-head results carry the most weight here, because surface, weather and test car all change between events and make raw numbers from different tests hard to compare directly.
How the GT-Radial WinterPro2 performs. It takes the win in dry, snow, noise / comfort, efficiency. Its overall Tire Lab Score is 89/100, based on 2 tests.
How the Semperit Speed Grip 5 performs. It takes the win in wet, ice, mileage. Its overall Tire Lab Score is 90/100, based on 12 tests.
What this means for you. Category wins matter more than the overall score when your driving is weighted toward one condition — a wet-climate commuter should follow the wet braking column, while a high-mileage driver should follow wear and rolling resistance. Also check that both tires are actually offered in your size and load rating: performance can shift between sizes, and availability differs between the European and North American markets.
Verdict
The Semperit Speed Grip 5 is the stronger all-round choice, leading in wet and Tire Lab Score. The GT-Radial WinterPro2 still wins on dry, making it the right pick if that matters most to you.
Which one should you buy?
- You prioritise dry
- You prioritise snow
- You prioritise noise / comfort
Choose Semperit Speed Grip 5 if
- You prioritise wet
- You prioritise ice
- You prioritise mileage
Test profile
| Metric | GT-Radial WinterPro2 | Semperit Speed Grip 5 |
|---|---|---|
| Segment | Winter | Winter |
| Type | Winter | Winter |
| Tests used | 2 | 12 |
| Best rank | #3 | #1 |
| Avg rank | 9.9 | 11.0 |
| Latest test | 2022 | 2025 |
| Tire Lab Score | 89.4 | 89.7 |
Tire Lab Score
GT-Radial WinterPro2
Semperit Speed Grip 5
Performance overview
Category-by-category results
| Category | GT-Radial WinterPro2 | Semperit Speed Grip 5 | Winner |
|---|---|---|---|
| 💧Wet | Avg rank 11.8 | Avg rank 9.3 221 | Semperit Speed Grip 5 |
| ☀️Dry | Avg rank 3.0 2 | Avg rank 9.6 12 | GT-Radial WinterPro2 |
| ❄️Snow | Avg rank 8.3 | Avg rank 11.1 112 | GT-Radial WinterPro2 |
| 🧊Ice | No data | Avg rank 12.7 | Semperit Speed Grip 5 |
| 🔇Noise / Comfort | Avg rank 5.5 1 | Avg rank 10.6 1 | GT-Radial WinterPro2 |
| 📏Mileage | No data | Avg rank 10.6 1 | Semperit Speed Grip 5 |
| 🔋Efficiency | Avg rank 7.0 | Avg rank 12.1 | GT-Radial WinterPro2 |
Tests used in this comparison
Both tires were measured head-to-head in these 1 independent test:
💧 Wet: GT-Radial WinterPro2 vs Semperit Speed Grip 5
The Semperit Speed Grip 5 wins this category with an average rank of 9.3, compared to 11.8 for the GT-Radial WinterPro2.
☀️ Dry: GT-Radial WinterPro2 vs Semperit Speed Grip 5
The GT-Radial WinterPro2 wins this category with an average rank of 3.0, compared to 9.6 for the Semperit Speed Grip 5.
❄️ Snow: GT-Radial WinterPro2 vs Semperit Speed Grip 5
The GT-Radial WinterPro2 wins this category with an average rank of 8.3, compared to 11.1 for the Semperit Speed Grip 5.
🧊 Ice: GT-Radial WinterPro2 vs Semperit Speed Grip 5
The Semperit Speed Grip 5 wins this category with an average rank of 12.7, compared to no data for the GT-Radial WinterPro2.
🔇 Noise / Comfort: GT-Radial WinterPro2 vs Semperit Speed Grip 5
The GT-Radial WinterPro2 wins this category with an average rank of 5.5, compared to 10.6 for the Semperit Speed Grip 5.
📏 Mileage: GT-Radial WinterPro2 vs Semperit Speed Grip 5
The Semperit Speed Grip 5 wins this category with an average rank of 10.6, compared to no data for the GT-Radial WinterPro2.
🔋 Efficiency: GT-Radial WinterPro2 vs Semperit Speed Grip 5
The GT-Radial WinterPro2 wins this category with an average rank of 7.0, compared to 12.1 for the Semperit Speed Grip 5.
Frequently asked questions
Which is better in the wet, GT-Radial WinterPro2 or Semperit Speed Grip 5?
Across independent wet-braking tests, the Semperit Speed Grip 5 ranks higher on average than the GT-Radial WinterPro2.
Which has shorter dry braking distance?
The GT-Radial WinterPro2 averages a better dry-braking rank than the Semperit Speed Grip 5 across the tests where both appeared.
Which tire is quieter and more comfortable?
On combined noise and comfort metrics, the GT-Radial WinterPro2 ranks better than the Semperit Speed Grip 5.
Which tire lasts longer?
Based on wear and abrasion testing, the Semperit Speed Grip 5 shows better mileage performance than the GT-Radial WinterPro2.
How many tests were used in this comparison?
GT-Radial WinterPro2 appears in 2 independent tests, Semperit Speed Grip 5 in 12, with 1 head-to-head tests where both were measured.
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Data aggregated from independent testing organizations including ADAC, Auto Bild, TCS, and Auto Motor und Sport. Read our methodology →