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245/40R21 Tires

Considering which tire size you need is important. Not all tires are the right fit for your vehicle. Therefore, spending some time learning about tire sizes, their meanings, and applications will help you narrow down your search. Of course, reading the tire size is not so easy, but it is an important skill. It consists of multiple numbers and letters, all of which have meanings. To learn more, keep reading.

245/40R21 Tire Size Explanation

  • 245 - This number represents the tire’s width in millimeters, measured from one shoulder to the other. In this case, the tire’s width is 245 mm (9.65 inches).
  • 40 - The aspect ratio is expressed as a percentage of the tire’s height to its width. A 40-aspect ratio means that the tire’s height is 40% of its width (in this case it is 98 mm / 3.86 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 245/40R21 Tires:

Apart from the tire size, drivers must consider multiple other factors as well, before deciding which tires to purchase. Here are some things to look into:

Vehicle Compatibility:

Match the tire size to your vehicle. Check whether 245/40R21 tires will work with it and purchase tires of the right tire size.

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 245/40R21 tires helps improve the vehicle’s performance and driving safety.

Budget:

Create a budget! 245/40R21 tires can be pricey and creating a budget range will help you decide between different tires more easily.

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:

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:

245/40R21 tires are a popular in the U.S. tire market, as they are suitable for a wide range of vehicles. These tires make sure that they offer the best possible handling, traction, and driving durability in versatile applications. If you wish to purchase these tires, make sure to check out all of the options available and buy the set that suits your driving habits, the road and weather conditions in your area, and, most importantly, your vehicle’s needs. With proper tire maintenance, your 245/40R21’s service life will be maximized.

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  1. Load Range
    SL
  1. Michelin Pilot Super Sport ZP 245/40R21 96Y Run Flat
    Michelin Logo
    Michelin Pilot Super Sport ZP 245/40R21 96Y Run Flat
    245/40R21
    Summer
    High Performance
    In Stock (10+)
    MSRP $701.75 per tire $581.99
    In Stock (10+)
    Enter your zip code for delivery times
    Show tire specifications Hide tire specifications
    SKU N941857-99
    Type Passenger
    Road Hazard Warranty No
    Load Range SL
    Speed Rating Y
    Performance High Performance
    MPN 53473
    Overall Diameter 28.7
    Season Summer
    Aspect Ratio 40
    Brand Michelin
    UTQG 300AAA
    Run Flat Yes
    Rebate Available No
    Sidewall BSW: Black Side Wall
    Size 245/40R21
    Load Index 96
    Section Width 245
    Model Pilot Super Sport ZP
    Rim Diameter 21
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