305/25 R21 - Best summer tyres 2026 - market overview, tests, reviews

Summer

9

Tyres

We recommend

Premium

Pilot Sport 4 S

9.6

£331

Buy Details

Best deals

Best tyres in tests (2026)

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1

Premium

Pilot Sport 4 S

'26#1

'26#5

'25#2

9.6

Price from

£331

Price from£331

Expert summary

Pilot Sport 4S is the sportier version of the Pilot Sports and the most sporty one that still cares about the wet performance, which is it's strong suite. It's usually expensive, but also a guarantee of a great performance tyre.

Recommended

#9

2026

theTire Lab.comRecommended#9 Summer tires 2026

Performance

Wet circle cornering

91%

Dry handling

88%

Dry braking

85%

+3

Aquaplaning - longitudal

65%

Wet handling

58%

Exterior noise

37%

Test results

2026225/40 R18#1(Highly recommended)

2026255/35 R19#5(Good)

2025295/30 R20#2(Exemplary)

2025225/40 R18#3(Highly recommended)

2025245/35 R19#4(Exemplary)

2024265/35 R19#2(Exemplary)

2023225/40 R18#3(Very good)

2022255/35 R19#2(-)

2021255/35 R19#1(Very good)

2021265/35 R20#3(Exemplary)

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Price variants (1)

305/25 R21 98 Y

A D 73dB

£331

mytyres.co.uk

£331

In stock · Free shipping

Buy

tyres-pneus-online.co.uk

£354

In stock · Free shipping

Buy

305/25 R21 tyre test

Personalize →

Best tyres in your size

Dry

1. Hankook Ventus Evo

91%

2. Michelin Pilot Sport 4 S

91%

3. Hankook Ventus S1 evo3 K127

70%

4. Continental EcoContact 6

50%

Wet

1. Hankook Ventus Evo

84%

2. Michelin Pilot Sport 4 S

77%

3. Hankook Ventus S1 evo3 K127

62%

4. Continental EcoContact 6

35%

Comfort

1. Hankook Ventus Evo

84%

2. Continental EcoContact 6

79%

3. Hankook Ventus S1 evo3 K127

65%

4. Michelin Pilot Sport 4 S

48%

This is a preview of our comprehensive tyre test. The full test includes:

Detailed breakdowns

Interactive sorting

Side-by-side comparisons

View Full Test Results

Price vs Quality

See how tyre price relates to test performance at a glance

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I'm looking for ...

Best tyres for EVs

Best dry-handling tyres

Best rain tyres

Best handling tyres

Quietest tyres

Most economical tyres

Best anti-aquaplaning tyres

Customer reviews

459 customer reviews for tyres in this size

Pirelli P ZERO 3/5 (122)

Michelin Pilot Super Sport 4.1/5 (122)

Michelin Pilot Sport 4 S 3.9/5 (120)

Continental EcoContact 6 2.7/5 (95)

Other popular sizes

0/0 R0336 Tyres 205/55 R16231 Tyres 225/45 R17210 Tyres 215/65 R16208 Tyres 225/55 R17198 Tyres 225/40 R18194 Tyres 225/50 R17189 Tyres 215/60 R16185 Tyres

Top brands in 305/25 R21

Hankook(2)

Continental(1)

Michelin(1)

Did you know ...?

305/25 R21 doesn't belong to the most popular dimensions for summer tyres - there are 5 tyre models available, which can be compared to 155/60 R15, 170/60 R17, 160/60 R14. Let's break down the sizing - 25 is height of the tyre, which is calculated as 25% of the tyre width (305mm), which means the sidewall height has 76.25 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 2154.82 mm, which is very similar to 215/65 R16(2154.82 mm), 255/35 R20(2156.7 mm), 255/40 R19(2157.02 mm), 225/45 R19(2152.31 mm), 255/45 R18(2157.33 mm), 295/30 R20(2151.99 mm), 185/75 R16(2148.54 mm). There are multiple speed indexes available for summer tyres in 305/25 R21: Y(300km/h). The same goes for weight indexes: 98, 127.