Call Us: 866-440-0177

Shipping is free for all orders! 90 Days Money Back Guarantee

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.

Filter and Sort
View as List Grid

2 Items

Your Selections:
  1. Treadlife/Mileage
  1. Nexen Roadian GTX 275/45R21 110W XL
    Nexen Logo
    Nexen Roadian GTX 275/45R21 110W XL
    275/45R21
    All Season
    High Performance
      70,000 miles
    In Stock (10+)
    MSRP $402.75 per tire $332.99
    In Stock (10+)
    Enter your zip code for delivery times
    Show tire specifications Hide tire specifications
    SKU N1696942-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating W
    Performance High Performance
    MPN 19030NXK
    Overall Diameter 30.7
    Season All Season
    Aspect Ratio 45
    Brand Nexen
    UTQG 680AA
    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 Roadian GTX
    Rim Diameter 21
    Treadlife/Mileage 70,000 miles
  2. Hankook Dynapro HPX 275/45R21 110H XL
    Hankook Logo
    Hankook Dynapro HPX 275/45R21 110H XL
    275/45R21
    All Season
    Performance
      70,000 miles
      Road Hazard Warranty
    In Stock (10+)
    MSRP $307.75 per tire $274.99
    In Stock (10+)
    Enter your zip code for delivery times
    Show tire specifications Hide tire specifications
    SKU N1556265-99
    Type Truck/SUV
    Road Hazard Warranty Yes
    Load Range XL
    Speed Rating H
    Performance Performance
    MPN 1030883
    Overall Diameter 30.7
    Season All Season
    Aspect Ratio 45
    Brand Hankook
    UTQG 680AA
    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 Dynapro HPX
    Rim Diameter 21
    Treadlife/Mileage 70,000 miles
2025 Priority Tire. All Rights Reserved