Tire Scouter

255/40R21 tires

Compare 39 models made in this size across 7 categories, ranked by spec score, then confirm fitment for your vehicle.

Spec scores are estimates from five manufacturer specs, not road tests. How we score

Shop 255/40R21 tires at Tire Rack

See tires in this size, then confirm the load index and speed rating your vehicle needs.

We may earn a commission from retailer links. Learn more

Shop 255/40R21 at Tire Rack
Our top pick in 255/40R21

Goodyear Eagle F1 Asymmetric 5

  • Ultra high performance summer

Best for wet-weather performance seekers.

The Goodyear Eagle F1 Asymmetric 5 is a compelling choice for those who prioritize wet grip and longevity in an ultra-high-performance summer tire.

  • Wet grip score of 9 significantly exceeds the category average of 7.6, making it a strong performer in rainy conditions.
  • Handling score of 8 aligns with the category's focus on responsive driving dynamics.
  • 60,000-mile treadwear warranty is notably higher than the category average of 37,754 miles, offering extended longevity for an ultra-high-performance tire.
Full analysis

The highest spec score among ultra high performance summer tires in this size that we have analysis for, the most common category for 255/40R21.

80Strong
None listed
300
AA
Y · 186 mph

Every scale below runs from the lowest to the highest spec score among the 35 scored tires in 255/40R21 (59 to 80).

Best ultra high performance summer tires in 255/40R21

20 models, highest spec score first.

All ultra high performance summer tires

  1. Goodyear Eagle F1 Asymmetric 5

    Best for wet-weather performance seekers.

    80StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    300
    Traction
    AA
    Speed rating
    Y · 186 mph
    • Wet grip score of 9 significantly exceeds the category average of 7.6, making it a strong performer in rainy conditions.
    • Handling score of 8 aligns with the category's focus on responsive driving dynamics.
    • The T speed rating is a mismatch for an ultra-high-performance tire, which may deter high-speed enthusiasts.

  2. Dunlop Sport Maxx RT2

    Best for performance enthusiasts.

    80StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    300
    Traction
    AA
    Speed rating
    Y · 186 mph
    • Perfect dry grip score of 10, surpassing the ultra-high performance summer category average of 8.7.
    • Wet grip rating of 9 is well above the category average of 7.6, making it reliable in rainy conditions.
    • Average noise levels might deter those seeking a quieter ride for daily commutes.

  3. Bridgestone Potenza Sport

    Best for performance enthusiasts.

    80StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    300
    Traction
    AA
    Speed rating
    Y · 186 mph
    • Perfect dry grip score of 10, surpassing the category average of 8.7, ideal for aggressive cornering and high-speed stability.
    • Wet grip rating of 9 is well above the category benchmark of 7.6, offering reliable performance in rainy conditions.
    • Average comfort and noise levels may deter those seeking a more refined and quiet driving experience.

  4. Pirelli P Zero

    Best for performance enthusiasts.

    80StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    300
    Traction
    AA
    Speed rating
    Y · 186 mph
    • Dry grip and handling scores are both perfect 10s, setting a high bar for the ultra-high-performance summer category.
    • Wet grip rating of 9 surpasses the category average of 7.6, making it reliable in summer rain.
    • If comfort and noise are significant factors, the P Zero's average scores in these areas may not meet your expectations.
Show 16 more ultra high performance summer tires

  1. Pirelli P Zero (PZ4)

    Best for drivers in wet climates.

    79StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    280
    Traction
    AA
    Speed rating
    Y · 186 mph

  2. Hankook Ventus S1 evo Z

    Best for performance enthusiasts.

    79StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    280
    Traction
    AA
    Speed rating
    Y · 186 mph

  3. Continental ContiSportContact 5

    Best for performance enthusiasts.

    79StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    280
    Traction
    AA
    Speed rating
    Y · 186 mph

  4. Michelin Pilot Sport All Season 4

    Best for enthusiast drivers.

    78Strong
    Warranty
    45k mi
    Treadwear
    540
    Traction
    AA
    Speed rating
    Y · 186 mph

  5. Continental ContiSportContact 5P

    Best for performance enthusiasts.

    78StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    240
    Traction
    AA
    Speed rating
    Y · 186 mph

  6. Goodyear Eagle F1 Asymmetric 6

    Best for performance enthusiasts.

    78StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    260
    Traction
    AA
    Speed rating
    Y · 186 mph

  7. Dunlop SP Sport Maxx GT

    Best for performance enthusiasts.

    78StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    240
    Traction
    AA
    Speed rating
    Y · 186 mph

  8. Goodyear Eagle F1 Asymmetric 3 SUV

    Best for wet-weather performance enthusiasts.

    78StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    260
    Traction
    AA
    Speed rating
    Y · 186 mph

  9. Toyo Proxes Sport SUV

    Best for wet-weather enthusiasts.

    78StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    240
    Traction
    AA
    Speed rating
    Y · 186 mph

  10. Continental SportContact 6

    Best for drivers in wet climates.

    70GoodFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    240
    Traction
    A
    Speed rating
    Y · 186 mph

  11. Michelin Pilot Sport 4S

    Best for enthusiast drivers.

    69Good
    Warranty
    30k mi
    Treadwear
    300
    Traction
    AA
    Speed rating
    Y · 186 mph

  12. Yokohama ADVAN Sport V107

    Best for performance enthusiasts.

    66Good
    Warranty
    20k mi
    Treadwear
    240
    Traction
    AA
    Speed rating
    W · 168 mph

  13. Michelin Pilot Sport 4 SUV

    Best for performance SUV owners.

    59Fair
    Warranty
    20k mi
    Treadwear
    220
    Traction
    A
    Speed rating
    Y · 186 mph

  14. Michelin Pilot Sport EV

    Best for performance enthusiasts.

    59Fair
    Warranty
    20k mi
    Treadwear
    220
    Traction
    A
    Speed rating
    Y · 186 mph

  15. Hankook Ventus S1 evo Z AS X

    Best for enthusiastic drivers.

    68GoodFrom 2 of 5 specs
    Warranty
    45k mi
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    W · 168 mph

  16. Atturo AZ850

    Best for dry-weather enthusiasts.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    Y · 186 mph

Best grand touring all-season tires in 255/40R21

7 models, highest spec score first.

All grand touring all-season tires

  1. Goodyear Assurance RangeMax

    Best for long-distance commuters.

    75StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    580
    Traction
    A
    Speed rating
    H · 130 mph
    • Comfort and noise scores of 8 match the category benchmarks, making it a solid choice for long-distance driving.
    • Treadwear rating of 580 slightly exceeds the category average, suggesting above-average longevity.
    • Lack of a treadwear mileage warranty could be a concern for budget-conscious buyers seeking guaranteed longevity.

  2. Michelin Primacy Tour A/S

    Best for commuters seeking dry road performance.

    72Strong
    Warranty
    45k mi
    Treadwear
    540
    Traction
    A
    Speed rating
    W · 168 mph
    • Treadlife warranty of 55,000 miles is competitive, though slightly below the category average of 64,578 miles.
    • Dry grip score of 8.5 outperforms the category average of 7.8, providing reliable traction on dry roads.
    • The lower UTQG treadwear rating of 540 compared to the category average suggests a shorter lifespan, which could be a concern for high-mileage drivers.

  3. Bridgestone Turanza 6

    Best for performance-focused drivers.

    72StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    320
    Traction
    A
    Speed rating
    Y · 186 mph
    • Comfort and noise scores both align with the category averages of 8, making it a balanced choice for quiet and smooth rides.
    • Dry grip and handling scores of 9.5 significantly exceed the category averages of 7.6, offering enhanced performance in dry conditions.
    • The low treadwear rating of 320 suggests a shorter lifespan, which may not suit drivers looking for maximum longevity.

  4. Continental EcoContact 6Q

    Best for comfort-focused drivers.

    72StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    320
    Traction
    A
    Speed rating
    Y · 186 mph
    • Comfort and noise scores both hit 8, matching the category benchmarks, which is ideal for long-distance highway cruising.
    • Wet grip score of 7.5 slightly surpasses the category average of 7.4, indicating reliable performance in rainy conditions.
    • The lack of a treadwear warranty makes it a riskier choice for those seeking long-term durability assurances.
Show 3 more grand touring all-season tires

  1. Vredestein Quatrac Pro+

    Severe-snow rated

    Best for comfort-focused drivers.

    70Good
    Warranty
    50k mi
    Treadwear
    400
    Traction
    A
    Speed rating
    Y · 186 mph

  2. Michelin CrossClimate2

    Severe-snow rated

    Best for comfort-focused drivers.

    69Good
    Warranty
    60k mi
    Treadwear
    640
    Traction
    B
    Speed rating
    V · 149 mph

  3. Toyo Celsius Sport

    Severe-snow rated

    Best for drivers in mixed weather regions.

    67Good
    Warranty
    40k mi
    Treadwear
    380
    Traction
    A
    Speed rating
    Y · 186 mph

Best winter tires in 255/40R21

5 models, highest spec score first.

All winter tires

  1. Pirelli Scorpion Winter 2

    Severe-snow rated

    Best for drivers seeking longevity.

    75StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    500
    Traction
    A
    Speed rating
    V · 149 mph
    • Snow traction score of 8 meets the winter category average, ensuring reliable performance in snowy conditions.
    • Dry grip and handling both score 8.5, significantly above the category averages of 7.1, making it a strong performer on dry winter roads.
    • Lack of specific ice traction data might be a concern for those in areas with frequent icy conditions.

  2. Pirelli Scorpion Winter

    Severe-snow rated

    Best for winter highway commuters.

    74Strong
    Warranty
    60k mi
    Treadwear
    500
    Traction
    A
    Speed rating
    W · 168 mph
    • 60,000-mile treadwear warranty exceeds the winter category average of 54,431 miles, offering longer usage before replacement.
    • Snow traction score of 8 matches the category average, ensuring reliable performance in typical winter conditions.
    • Lack of ice traction data may be a concern for those facing frequent icy conditions.

  3. Vredestein Wintrac Pro

    Severe-snow rated

    Best for moderate snow drivers.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    V · 149 mph
    • Snow traction score of 8, which is competitive for winter conditions and suitable for moderate snow coverage.
    • Comfort score of 6.2 matches the winter category average, making it a decent choice for longer drives in cold conditions.
    • Lack of a treadwear warranty makes it less appealing for budget-conscious buyers who prioritize long-term cost efficiency.

  4. Nokian Hakkapeliitta R5 EV

    Severe-snow rated

    Best for long-distance winter drivers.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    T · 118 mph
    • Treadlife score of 10 and an 80,000-mile warranty far exceed the winter category average of 54,431 miles.
    • Dry grip rating of 7.5 surpasses the category average of 7.1, which is beneficial for those unexpected dry winter days.
    • Lacks 3PMSF certification, which may not meet the needs of drivers in areas with severe snow conditions.
Show 1 more winter tire

  1. Pirelli P Zero Winter

    Severe-snow rated

    Best for drivers in moderate winter climates.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    H · 130 mph

Best touring all-season tires in 255/40R21

3 models, highest spec score first.

All touring all-season tires

  1. Continental CrossContact RX

    Best for comfort-focused drivers.

    77StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    480
    Traction
    A
    Speed rating
    W · 168 mph
    • Comfort and noise scores of 8 match the category benchmarks, making it a solid choice for a quiet and smooth ride.
    • Wet grip rating of 7.5 exceeds the category average of 6.9, providing better-than-average performance in rainy conditions.
    • Lack of a treadwear warranty and low UTQG treadwear rating suggest higher long-term costs compared to competitors with warranties.

  2. Hankook iON evo AS SUV

    Best for everyday SUV drivers.

    74Strong
    Warranty
    50k mi
    Treadwear
    600
    Traction
    A
    Speed rating
    Y · 186 mph
    • Treadlife rating of 7.8 aligns with the category average, supported by a 50,000-mile warranty.
    • Wet grip score of 7.5 exceeds the category average of 6.9, providing reliable performance in rainy conditions.
    • The 50,000-mile warranty is shorter than the category average, which may not suit high-mileage drivers looking for long-term value.

  3. Bridgestone Alenza Sport A/S

    Best for comfort-focused drivers.

    73StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    500
    Traction
    A
    Speed rating
    H · 130 mph
    • Comfort and noise scores of 8 align with category benchmarks, ensuring a quiet and smooth ride.
    • Wet grip rating of 7.5 exceeds the category average of 6.9, providing reliable performance in rainy conditions.
    • The 40,000-mile treadwear warranty is well below the category average, which means more frequent replacements and higher long-term costs.

Best performance all-season tires in 255/40R21

2 models, highest spec score first.

All performance all-season tires

  1. Falken Azenis FK460 A/S

    Best for enthusiastic drivers.

    72Strong
    Warranty
    50k mi
    Treadwear
    500
    Traction
    A
    Speed rating
    Y · 186 mph
    • Dry grip and handling both score a perfect 10, making it a standout choice for spirited driving.
    • Treadlife warranty of 50,000 miles significantly exceeds the category average of 37,754 miles.
    • Wet grip performance lags behind competitors like the Michelin Pilot Sport 4S, which might be a dealbreaker for those in rainy climates.

  2. Nexen N5000 Platinum

    Best for enthusiastic daily drivers.

    74StrongFrom 3 of 5 specs
    Warranty
    55k mi
    Treadwear
    700
    Traction
    Not graded
    Speed rating
    W · 168 mph
    • Outstanding dry grip with a perfect score of 10, surpassing the category average of 8.4.
    • Handling is rated at 10, making it a strong choice for drivers who prioritize responsive steering and control.
    • The lack of a 3PMSF rating means it's not the best choice for drivers who need reliable light snow performance.

Best all-terrain tires in 255/40R21

1 model, highest spec score first.

All all-terrain tires

  1. Pirelli Scorpion Zero All Season

    Best for long-distance drivers.

    75StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    500
    Traction
    A
    Speed rating
    V · 149 mph
    • Off-road traction is supported by a robust tread pattern and a UTQG treadwear rating of 500, promising durability.
    • Treadwear warranty of 60,000 miles exceeds the category average of 55,717 miles, offering longer coverage than many competitors.
    • If severe winter performance is a priority, the lack of 3PMSF certification means this tire might not meet your needs.

Best max performance summer tires in 255/40R21

1 model, highest spec score first.

All max performance summer tires

  1. Toyo Proxes Sport 2

    Best for wet-weather enthusiasts.

    67Good
    Warranty
    25k mi
    Treadwear
    240
    Traction
    AA
    Speed rating
    Y · 186 mph
    • Wet grip score of 9 surpasses the category average of 7.9, making it a strong performer in rainy conditions.
    • Dry grip and handling both score 8, closely matching the category average, which ensures reliable performance on dry roads.
    • The lower UTQG treadwear rating of 240 suggests a shorter lifespan, which may not suit those seeking longer-lasting performance tires.

Vehicles that use 255/40R21

A sample of recent vehicles whose factory front size is 255/40R21. Sizes can vary by trim, so confirm yours before you buy.

  • 2026 Genesis GV70
  • 2025 Alfa Romeo Stelvio
  • 2025 Audi Q5 Sportback
  • 2025 Audi SQ5
  • 2025 Audi SQ5 Sportback
  • 2025 BMW 740i
  • 2025 BMW 740i xDrive
  • 2025 BMW 750e xDrive
  • 2025 BMW 760i xDrive
  • 2025 BMW i7
  • 2025 BMW X3 xDrive
  • 2025 BMW X4 M

Showing 12 of the most recent.

Popular brands in 255/40R21

The number beside each brand is how many of its models come in this size.

What 255/40R21 means

255/40R21 designates a tire 255 mm (10.0") wide with a sidewall 40% as tall as it is wide — about 102 mm (4.0") — mounted on a 21-inch wheel. That works out to an overall diameter of roughly 29.0", a circumference of about 91.2", and approximately 695 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

Of the 39 255/40R21 tire models we track, the most common category is ultra high performance summer (20 models), followed by grand touring all-season (7) — a good indicator of the kind of vehicles and driving this size is designed for.

Sidewall height
102 mm
Overall diameter
29.0 in
Circumference
91.2 in
Revs per mile
695

Frequently asked questions

What does 255/40R21 mean?

255/40R21 breaks down as follows: 255mm is the tire's section width (the widest point), 40 is the aspect ratio (sidewall height as a percentage of width), R means radial construction, and 21 is the wheel diameter in inches.

What vehicles use 255/40R21 tires?

255/40R21 is a common fitment for vehicles like the 2026 Genesis GV70, 2025 Alfa Romeo Stelvio, 2025 Audi Q5 Sportback, 2025 Audi SQ5 and others. Always confirm your specific trim's fitment before purchasing.

How tall is a 255/40R21 tire?

A 255/40R21 tire has a sidewall height of about 102 mm (4.0") and an overall diameter of roughly 29.0", turning approximately 695 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

255/40R21 research guides

Summer vs all-season tires

Where summer tires lose grip, the cold-cracking risk, and what all-season tires trade for their range.

Read the guide

Speed rating chart

A practical chart for common tire speed ratings and what they mean for everyday driving.

Read the guide

Changing tire size

Plus-sizing and alternate sizes: diameter limits, load and speed ratings, and speedometer error.

Read the guide

Confirm 255/40R21 fits your vehicle

Wheel size can vary by trim and option package. Enter your year, make, model, and trim to verify fitment before you order.

Check my vehicle