Tire Scouter

255/50R21 tires

Compare 14 models made in this size across 5 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

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Our top pick in 255/50R21

Hankook iON evo AS SUV

  • Touring all-season

Best for everyday SUV drivers.

The Hankook iON evo AS SUV is a solid choice for SUV owners prioritizing wet grip and comfort in a touring all-season tire.

  • 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.
  • Comfort and noise ratings both meet the category averages, ensuring a smooth and quiet ride.
Full analysis

The highest spec score among touring all-season tires in this size that we have analysis for, the most common category for 255/50R21.

74Strong
50k mi
600
A
Y · 186 mph

Every scale below runs from the lowest to the highest spec score among the 10 scored tires in 255/50R21 (62 to 79).

Best touring all-season tires in 255/50R21

5 models, highest spec score first.

All touring all-season tires

  1. 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.

  2. 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.

  3. Goodyear Eagle Touring

    Best for drivers prioritizing dry and wet grip.

    69GoodFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    350
    Traction
    A
    Speed rating
    H · 130 mph
    • Above-average dry grip score of 8.5, which exceeds the category average of 7.8.
    • Wet grip rating of 7.5 outperforms the category average of 6.9, providing better traction in rainy conditions.
    • The lack of a treadwear warranty and a low UTQG treadwear rating of 350 could mean more frequent replacements, increasing long-term costs.

  4. Michelin Primacy A/S

    Best for highway commuters.

    62Good
    Warranty
    45k mi
    Treadwear
    540
    Traction
    B
    Speed rating
    H · 130 mph
    • Treadlife warranty of 55,000 miles is a solid offering, though it trails the category average of 64,578 miles.
    • Dry grip score of 8.5 surpasses the category average of 7.8, making it a strong performer in dry conditions.
    • The treadwear rating of 540 suggests a shorter lifespan compared to other touring all-season tires, impacting long-term value.
Show 1 more touring all-season tire

  1. Goodyear Eagle Touring SCT

    Best for drivers prioritizing dry performance.

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

Best grand touring all-season tires in 255/50R21

3 models, highest spec score first.

All grand touring all-season tires

  1. Michelin Primacy Tour A/S

    Best for commuters seeking dry road performance.

    71Good
    Warranty
    55k mi
    Treadwear
    540
    Traction
    A
    Speed rating
    H · 130 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.

  2. Goodyear Efficient Grip Performance 2

    Best for comfort-focused drivers.

    71GoodFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    300
    Traction
    A
    Speed rating
    Y · 186 mph
    • Comfort and noise scores of 8 align with the category average, making it a pleasant choice for long drives.
    • Wet grip rating of 7.5 slightly exceeds the category average of 7.4, indicating competent performance in rainy conditions.
    • The lack of a treadwear warranty and a low treadwear rating of 300 could lead to more frequent replacements, increasing long-term costs.

  3. Bridgestone Alenza 001

    Best for drivers seeking performance.

    71GoodFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    300
    Traction
    A
    Speed rating
    Y · 186 mph
    • Dry grip score of 8.5, significantly above the category average of 7.6, making it a strong choice for spirited driving.
    • Comfort and noise scores both at 8, matching the category benchmarks, which means it won't annoy you on long drives.
    • The lack of a treadwear warranty and a low treadwear rating of 300 could lead to more frequent replacements, increasing long-term costs.

Best winter tires in 255/50R21

3 models, highest spec score first.

All winter tires

  1. Michelin Pilot Alpin 5 SUV

    Severe-snow rated

    Best for SUV owners in snowy regions.

    64Good
    Warranty
    30k mi
    Treadwear
    500
    Traction
    A
    Speed rating
    H · 130 mph
    • Snow traction score of 8, which is solid for winter conditions and ensures reliable performance in snowy environments.
    • Treadwear warranty of 30,000 miles is a plus for a winter tire, providing some assurance on longevity.
    • If you prioritize a quiet and comfortable ride above all else, this tire's average noise and comfort scores might not meet your expectations.

  2. 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
    R · 106 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.

  3. Nokian Hakkapeliitta 10EV

    Severe-snow rated

    Best for drivers prioritizing dry road performance.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    T · 118 mph
    • Dry grip score of 8.5 exceeds the winter category average of 7.1, providing strong performance on cold, dry roads.
    • Handling score of 8.5 is above average, making it responsive and controlled in winter conditions.
    • Lack of 3PMSF certification may deter those seeking assured winter performance in severe conditions.

Best ultra high performance summer tires in 255/50R21

2 models, highest spec score first.

All ultra high performance summer tires

  1. Continental ContiSportContact 5

    Best for performance enthusiasts.

    79StrongFrom 4 of 5 specs
    Warranty
    None listed
    Treadwear
    280
    Traction
    AA
    Speed rating
    Y · 186 mph
    • Dry grip score of 9 matches the highest in the ultra-high-performance summer category, making it a strong choice for spirited driving.
    • Wet grip rating of 9 significantly exceeds the category average of 7.6, offering reliable performance in wet conditions.
    • The lower treadwear rating of 280 suggests a shorter lifespan compared to alternatives like the Michelin Pilot Sport 4S, which may impact long-term value.

  2. 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
    • Wet grip score of 9 exceeds the ultra high performance summer category average of 7.6, making it a strong performer in rainy conditions.
    • Dry grip and handling both score 8, which aligns well with the category's focus on performance driving.
    • The lack of a treadwear warranty could be a concern for buyers looking for a guaranteed lifespan from their performance tires.

Best max performance summer tires in 255/50R21

1 model, highest spec score first.

All max performance summer tires

  1. Goodyear Eagle NCT 5 EMT

    Severe-snow rated

    Best for drivers seeking longevity.

    Not enough spec data
    Warranty
    None listed
    Treadwear
    Not graded
    Traction
    Not graded
    Speed rating
    W · 168 mph
    • Dry grip score of 9 surpasses the max performance summer category average of 8.2, making it a solid choice for spirited driving.
    • Handling rating of 9 aligns with its strong dry grip, providing precise steering response.
    • Wet grip performance is notably poor, making it a risky choice for drivers in regions with frequent rain.

Vehicles that use 255/50R21

A sample of recent vehicles whose factory front size is 255/50R21. Sizes can vary by trim, so confirm yours before you buy.

  • 2026 BMW iX
  • 2025 BMW iX
  • 2025 Lincoln Nautilus
  • 2025 Nissan Murano
  • 2025 Rolls Royce Cullinan
  • 2025 Rolls Royce Phantom
  • 2024 BMW iX
  • 2024 Lincoln Nautilus
  • 2024 Rolls Royce Cullinan
  • 2024 Rolls Royce Phantom
  • 2023 BMW iX
  • 2023 Rolls Royce Cullinan

Showing 12 of the most recent.

Popular brands in 255/50R21

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

What 255/50R21 means

255/50R21 designates a tire 255 mm (10.0") wide with a sidewall 50% as tall as it is wide — about 128 mm (5.0") — mounted on a 21-inch wheel. That works out to an overall diameter of roughly 31.0", a circumference of about 97.5", and approximately 650 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

Of the 14 255/50R21 tire models we track, the most common category is touring all-season (5 models), followed by grand touring all-season (3) — a good indicator of the kind of vehicles and driving this size is designed for.

Sidewall height
128 mm
Overall diameter
31.0 in
Circumference
97.5 in
Revs per mile
650

Frequently asked questions

What does 255/50R21 mean?

255/50R21 breaks down as follows: 255mm is the tire's section width (the widest point), 50 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 255/50R21 tires?

255/50R21 is a common fitment for vehicles like the 2026 BMW iX, 2025 BMW iX, 2025 Lincoln Nautilus, 2025 Nissan Murano and others. Always confirm your specific trim's fitment before purchasing.

How tall is a 255/50R21 tire?

A 255/50R21 tire has a sidewall height of about 128 mm (5.0") and an overall diameter of roughly 31.0", turning approximately 650 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

255/50R21 research guides

All-season tires buying guide

A practical primer on how all-season tires perform, who they fit best, and what to compare.

Read the guide

Tire rotation guide

Rotation intervals and patterns for FWD, RWD and AWD vehicles, directional tires and staggered setups.

Read the guide

Tire warranty explained

Mileage warranties, exclusions, road hazard fine print, and how to compare warranty language intelligently.

Read the guide

Confirm 255/50R21 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.

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