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275/45R21 Tires

Getting the correct tire size is crucial when buying new tires. While tire size does not dictate the specific characteristics each tire has, it is something that cannot be neglected when searching for your next tire set. Each tire size consists of numbers and letters that have specific meanings. The different components of the tire size together determine on which vehicles and in what type of applications these tires can be used. Learn more about what each section of the tire size means.

275/45R21 Tire Size Explanation

  • 275 - This number represents the tire’s width in millimeters, measured from one shoulder to the other. In this case, the tire’s width is 275 mm (10.83 inches).
  • 45 - The aspect ratio is expressed as a percentage of the tire’s height to its width. A 45-aspect ratio means that the tire’s height is 45% of its width (in this case it is 123.75 mm / 4.87 inches).
  • R - This indicates that the tire was manufactured with a radial construction, which is the most common tire construction type used today.
  • 21 - This last number denotes the diameter of the wheel in inches. This tire was manufactured to be mounted on 21-inch (533.4 mm) wheels.

Factors to Consider When Choosing 275/45R21 Tires:

It is important to match the tires to the vehicle’s needs, but tire size is not the only factor you have to consider.

Vehicle Compatibility:

While the 275/45R21 tires might be what you want, it depends on your vehicle’s needs. Check the recommended tire size before purchasing.

Tire Type:

After deciding on the tire size, figure out whether you need snow tires or all season tires (maybe even summer tires) for your specific application.

Tread Pattern:

The optimized tread pattern of 275/45R21 tires helps improve the vehicle’s performance and driving safety.

Budget:

Create a budget! 275/45R21 tires can be pricey and creating a budget range will help you decide between different tires more easily.

Brand and Quality:

Research the tires you are interested in before finalizing your purchase. Get the quality tires that work best for your vehicle.

Load and Speed Rating:

Matching load ranges, load indexes, and speed ratings to the vehicle’s needs is crucial to ensure a secure performance.

Tire Maintenance

Proper tire maintenance is crucial to ensure the tire’s lengthened usability. This helps protect the tires from tread and external damage.

Conclusion:

275/45R21 tires are a great choice, which will enhance driving safety levels. When the correct tires are chosen - that are also the right selection for vehicle types, performance, driving habits, and driving conditions - the vehicle is able to securely perform at all times. With proper tire maintenance, 275/45R21 tires are sure to serve you for a long time.

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  1. Treadlife/Mileage
  1. RoadX Rxmotion SUV UX01 275/45R21 110W XL
    RoadX Logo
    RoadX Rxmotion SUV UX01 275/45R21 110W XL
    275/45R21
    All Season
    High Performance
      60,000 miles
    In Stock (10+)
    MSRP $236.75 per tire $191.99
    In Stock (10+)
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    SKU N1580538-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN 1600318K
    Overall Diameter 30.7
    Season All Season
    Aspect Ratio 45
    Brand RoadX
    UTQG 700AA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 275/45R21
    Load Index 110
    Section Width 275
    Model Rxmotion SUV UX01
    Rim Diameter 21
    Treadlife/Mileage 60,000 miles
  2. Ironhead Reflex SUV UVD01 275/45R21 110W XL
    Ironhead Logo
    Ironhead Reflex SUV UVD01 275/45R21 110W XL
    275/45R21
    All Season
    High Performance
      60,000 miles
    In Stock (10+)
    MSRP $186.75 per tire $155.99
    In Stock (10+)
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    SKU N1570045-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN IHCV39K
    Overall Diameter 30.7
    Season All Season
    Aspect Ratio 45
    Brand Ironhead
    UTQG 700AA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 275/45R21
    Load Index 110
    Section Width 275
    Model Reflex SUV UVD01
    Rim Diameter 21
    Treadlife/Mileage 60,000 miles
  3. Rovelo Instinct SUV 275/45R21 110W XL
    Rovelo Logo
    Rovelo Instinct SUV 275/45R21 110W XL
    275/45R21
    All Season
    High Performance
      60,000 miles
    In Stock (10+)
    MSRP $186.75 per tire $159.99
    In Stock (10+)
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    SKU N1567023-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN 4120131V
    Overall Diameter 30.7
    Season All Season
    Aspect Ratio 45
    Brand Rovelo
    UTQG 700AA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 275/45R21
    Load Index 110
    Section Width 275
    Model Instinct SUV
    Rim Diameter 21
    Treadlife/Mileage 60,000 miles
  4. Multi-Mile Wild Country Sport H/T 275/45R21 110W XL
    Multi-Mile Logo
    Multi-Mile Wild Country Sport H/T 275/45R21 110W XL
    275/45R21
    All Season
    High Performance
      60,000 miles
    In Stock (10+)
    MSRP $201.75 per tire $161.99
    In Stock (10+)
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    SKU N1681182-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN MM-WHT08
    Overall Diameter 30.7
    Season All Season
    Aspect Ratio 45
    Brand Multi-Mile
    UTQG 600AA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 275/45R21
    Load Index 110
    Section Width 275
    Model Wild Country Sport H/T
    Rim Diameter 21
    Treadlife/Mileage 60,000 miles
  5. Goodyear Assurance WeatherReady 2 275/45R21 110W XL
    Goodyear Logo
    Goodyear Assurance WeatherReady 2 275/45R21 110W XL
    275/45R21
    All Weather
    High Performance
      60,000 miles
    In Stock (10+)
    MSRP $471.75 per tire $392.99
    In Stock (10+)
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    SKU N1690240-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN 767193673
    Overall Diameter 30.7
    Season All Weather
    Aspect Ratio 45
    Brand Goodyear
    UTQG 700AA
    Run Flat No
    Rebate Available Yes
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 275/45R21
    Load Index 110
    Section Width 275
    Model Assurance WeatherReady 2
    Rim Diameter 21
    Treadlife/Mileage 60,000 miles
  6. Eldorado HTX Sport II 275/45R21 110W XL
    Eldorado Logo
    Eldorado HTX Sport II 275/45R21 110W XL
    275/45R21
    All Season
    High Performance
      60,000 miles
    In Stock (10+)
    MSRP $204.75 per tire $177.99
    In Stock (10+)
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    SKU N1693198-99
    Type Truck/SUV
    Road Hazard Warranty Yes
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN EL-HTX08
    Overall Diameter 30.7
    Season All Season
    Aspect Ratio 45
    Brand Eldorado
    UTQG 600AA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 275/45R21
    Load Index 110
    Section Width 275
    Model HTX Sport II
    Rim Diameter 21
    Treadlife/Mileage 60,000 miles
  7. Summit Trail Climber SUV2 275/45R21 110W XL
    Summit Logo
    Summit Trail Climber SUV2 275/45R21 110W XL
    275/45R21
    All Season
    High Performance
      60,000 miles
    In Stock (10+)
    MSRP $173.75 per tire $155.68
    In Stock (10+)
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    SKU N1658581-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN 20703
    Overall Diameter 30.7
    Season All Season
    Aspect Ratio 45
    Brand Summit
    UTQG N/A
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 275/45R21
    Load Index 110
    Section Width 275
    Model Trail Climber SUV2
    Rim Diameter 21
    Treadlife/Mileage 60,000 miles
  8. Blackhawk Agility SUV 275/45R21 110W XL
    Blackhawk Logo
    Blackhawk Agility SUV 275/45R21 110W XL
    275/45R21
    All Season
    High Performance
      60,000 miles
    In Stock (10+)
    MSRP $192.75 per tire $154.99
    In Stock (10+)
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    SKU N1571278-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN 4120189V
    Overall Diameter 30.7
    Season All Season
    Aspect Ratio 45
    Brand Blackhawk
    UTQG 700AA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 275/45R21
    Load Index 110
    Section Width 275
    Model Agility SUV
    Rim Diameter 21
    Treadlife/Mileage 60,000 miles
  9. Pirelli Scorpion WeatherActive 275/45R21 110W XL
    Pirelli Logo
    Pirelli Scorpion WeatherActive 275/45R21 110W XL
    275/45R21
    All Weather
    High Performance
      60,000 miles
    In Stock (10+)
    MSRP $440.75 per tire $384.28
    In Stock (10+)
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    SKU N4166500-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN 4166500
    Overall Diameter 30.7
    Season All Weather
    Aspect Ratio 45
    Brand Pirelli
    UTQG 700AA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 275/45R21
    Load Index 110
    Section Width 275
    Model Scorpion WeatherActive
    Rim Diameter 21
    Treadlife/Mileage 60,000 miles
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