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305/30R21 Tires

Planning out your tire purchase is a good idea, but no plan is complete without considering the tire size you need for your vehicle. The tire size is not just a number, it is an intricate combination of numbers and letters – all of which have their own meaning. Keeping to the vehicle’s recommended tire size and finding the tires that work best for you in that category is the reliable option.

305/30R21 Tire Size Explanation

  • 305 - This number represents the tire’s width in millimeters, measured from one shoulder to the other. In this case, the tire’s width is 305 mm (12.01 inches).
  • 30 - The aspect ratio is expressed as a percentage of the tire’s height to its width. A 30-aspect ratio means that the tire’s height is 30% of its width (in this case it is 91.5 mm / 3.6 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 305/30R21 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:

Check the owner’s manual for the tire size suitable for your vehicle, as 305/30R21 tires might not work for it.

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 305/30R21 tires helps improve the vehicle’s performance and driving safety.

Budget:

Create a reasonable budget and stick with it. This will narrow down your options, while also preventing you from overspending.

Brand and Quality:

Depending on the tire brand you purchase, you will get different quality tires. For this reason, it is important to do some research before buying the tires.

Load and Speed Rating:

Find suitable tire load and speed ratings for your vehicle. If they do not match your vehicle, they will not work for you.

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:

If 305/30R21 tires are the correct size for your vehicle, don’t forget to consider other factors as well. When every tire puzzle piece is placed where it belongs, 305/30R21 tires offer exceptional performance, handling, and traction. This results in a safer driving experience as the tires are specifically chosen to optimize the vehicle’s performance, the driving habits, and the vehicle’s ability to perform in different weather and road conditions.

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11 Items

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  1. Season
    Summer
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  1. Goodyear Eagle F1 Asymmetric 3 (N0) 305/30R21 ZR 104Y XL
    Goodyear Logo
    Goodyear Eagle F1 Asymmetric 3 (N0) 305/30R21 ZR 104Y XL
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $543.75 per tire $439.99
    In Stock (10+)
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    SKU N1149456-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating Y
    Performance High Performance
    MPN 783126388
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Goodyear
    UTQG 300AAA
    Run Flat No
    Rebate Available No
    Country of Origin Germany
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model Eagle F1 Asymmetric 3
    Rim Diameter 21
  2. Pirelli P Zero (PZ4) (NA1) 305/30R21 ZR 100Y
    Pirelli Logo
    Pirelli P Zero (PZ4) (NA1) 305/30R21 ZR 100Y
    305/30R21
    Summer
    High Performance
    Low Stock (10)
    MSRP $606.75 per tire $536.87
    Low Stock (10)
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    SKU N1150514-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range SL
    Speed Rating Y
    Performance High Performance
    MPN 3832000
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Pirelli
    UTQG 220AAA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 100
    Section Width 305
    Model P Zero (PZ4)
    Rim Diameter 21
  3. Pirelli P Zero (PZ4) (NF0) 305/30R21 ZR 104Y XL
    Pirelli Logo
    Pirelli P Zero (PZ4) (NF0) 305/30R21 ZR 104Y XL
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $662.75 per tire $569.71
    In Stock (10+)
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    SKU N1496704-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating Y
    Performance High Performance
    MPN 2862800
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Pirelli
    UTQG 220AAA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model P Zero (PZ4)
    Rim Diameter 21
  4. Goodyear Eagle F1 Asymmetric 3 (NF0) 305/30R21 ZR 104Y XL
    Goodyear Logo
    Goodyear Eagle F1 Asymmetric 3 (NF0) 305/30R21 ZR 104Y XL
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $561.75 per tire $449.99
    In Stock (10+)
    Add to Wish List Compare
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    SKU N1437594-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating Y
    Performance High Performance
    MPN 783142388
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Goodyear
    UTQG 300AAA
    Run Flat No
    Rebate Available No
    Country of Origin Germany
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model Eagle F1 Asymmetric 3
    Rim Diameter 21
  5. Continental ExtremeContact Sport 02 305/30R21 ZR 104Y XL
    Continental Logo
    Continental ExtremeContact Sport 02 305/30R21 ZR 104Y XL
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $551.75 per tire $444.99
    In Stock (10+)
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    SKU N1541473-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating Y
    Performance High Performance
    MPN 03125700000
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Continental
    UTQG 340AAA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model ExtremeContact Sport 02
    Rim Diameter 21
  6. Gladiator X Comp H/P 305/30R21 ZR 104Y
    Gladiator Logo
    Gladiator X Comp H/P 305/30R21 ZR 104Y
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $514.75 per tire $425.00
    In Stock (10+)
    Add to Wish List Compare
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    SKU N1567619-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range SL
    Speed Rating Y
    Performance High Performance
    MPN 1951451300
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Gladiator
    UTQG 200AAA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model X Comp H/P
    Rim Diameter 21
  7. Goodyear Eagle F1 Asymmetric 5 305/30R21 104Y XL
    Goodyear Logo
    Goodyear Eagle F1 Asymmetric 5 305/30R21 104Y XL
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $629.75 per tire $525.99
    In Stock (10+)
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    SKU N1514268-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating Y
    Performance High Performance
    MPN 103016594
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Goodyear
    UTQG 300AAA
    Run Flat No
    Rebate Available No
    Country of Origin Germany
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model Eagle F1 Asymmetric 5
    Rim Diameter 21
  8. Pirelli P Zero (PZ4) (A7A) 305/30R21 ZR 104Y XL (DC)
    Pirelli Logo
    Pirelli P Zero (PZ4) (A7A) 305/30R21 ZR 104Y XL (DC)
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $821.75 per tire $699.39
    In Stock (10+)
    Add to Wish List Compare
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    Show tire specifications Hide tire specifications
    SKU N1657930-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating Y
    Performance High Performance
    MPN 4132100
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Pirelli
    UTQG 280AAA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model P Zero (PZ4)
    Rim Diameter 21
  9. Gripmax SureGrip Pro Sport 305/30R21 ZR 104Y XL
    Gripmax Logo
    Gripmax SureGrip Pro Sport 305/30R21 ZR 104Y XL
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $217.75 per tire $184.99
    In Stock (10+)
    Add to Wish List Compare
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    SKU N1696690-99
    Type Truck/SUV
    Load Range XL
    Speed Rating Y
    Performance High Performance
    MPN 810149133947
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Gripmax
    UTQG N/A
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model SureGrip Pro Sport
    Rim Diameter 21
  10. Pirelli P Zero R Elect (NB0 718 Boxster/Cayman) 305/30R21 ZR 104Y XL
    Pirelli Logo
    Pirelli P Zero R Elect (NB0 718 Boxster/Cayman) 305/30R21 ZR 104Y XL
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $765.75 per tire $657.86
    In Stock (10+)
    Add to Wish List Compare
    Enter your zip code for delivery times
    Show tire specifications Hide tire specifications
    SKU N1693903-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating Y
    Performance High Performance
    MPN 4455100
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Pirelli
    UTQG 280AAA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model P Zero R Elect
    Rim Diameter 21
  11. Pirelli P Zero R Elect (NF0) 305/30R21 ZR 104Y XL
    Pirelli Logo
    Pirelli P Zero R Elect (NF0) 305/30R21 ZR 104Y XL
    305/30R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $790.75 per tire $658.81
    In Stock (10+)
    Add to Wish List Compare
    Enter your zip code for delivery times
    Show tire specifications Hide tire specifications
    SKU N1669612-99
    Type Truck/SUV
    Road Hazard Warranty No
    Load Range XL
    Speed Rating Y
    Performance High Performance
    MPN 4231300
    Overall Diameter 28.2
    Season Summer
    Aspect Ratio 30
    Brand Pirelli
    UTQG 280AAA
    Run Flat No
    Rebate Available No
    Country of Origin N/A
    Sidewall BSW: Black Side Wall
    Size 305/30R21
    Load Index 104
    Section Width 305
    Model P Zero R Elect
    Rim Diameter 21

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