255/45 R21 - Best summer tyres 2025 - market overview, tests, reviews
Table of contents:
Best summer tyres in tests (2025)
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Michelin Pilot Sport 4 SUV
While the Michelin PS4 SUV was introduced back in 2019, it still offers a top-notch performance for the SUVs which is difficult for it's competitors to match.
- Very good aquaplaning resistance
- Short braking distance on wet roads
- Great handling on dry roads
- Short braking distance on dry roads
- Exceptional handling on the wet
- High drive-by noise levels
| Rank | Year | Organization | Size | Rating |
|---|---|---|---|---|
2 | 2024 | Autobild | 235/55 R19 | Exemplary |
1 | 2023 | Autobild | 225/65 R17 | Exemplary |
6 | 2023 | Automotorsport | 255/45 R20 | Very good |
1 | 2020 | Vibilagare | 225/60 R18 | - |
1 | 2020 | Autobild | 255/55 R18 | Exemplary |
255/45 R21 tyre test Personalize
Best tyres in your size
Dry
1.
Continental PremiumContact 6
85%
Wet
1.
Continental PremiumContact 6
71%
Comfort
1.
Continental PremiumContact 6
40%
Economy
1.
Continental PremiumContact 6
69%
2.
Michelin Pilot Sport 4 SUV
49%
This is a preview of our comprehensive tyre test. The full test includes:
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Side-by-side comparisons
Did you know ...?
255/45 R21 doesn't belong to the most popular dimensions for summer tyres - there are 0 tyre models available, which can be compared to 155/60 R15, 170/60 R17, 160/60 R14. Let's break down the sizing - 45 is height of the tyre, which is calculated as 45% of the tyre width (255mm), which means the sidewall height has 114.75 mm. The wheel diameter is R21, which means it fits to a 21 inch/533.4mm diameter wheel. The total circumference of the tyre is 2396.72 mm, which is very similar to 255/50 R20(2397.04 mm), 255/55 R19(2397.35 mm), 235/65 R18(2396.09 mm), 255/60 R18(2397.66 mm), 255/65 R17(2397.98 mm), 255/70 R16(2398.29 mm), 285/45 R20(2401.75 mm). There are multiple speed indexes available for summer tyres in 255/45 R21: V(240km/h), Y(300km/h). The same goes for weight indexes: 105, 106.
