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325-30zr21 tires

X COMP H/P

Performance tires are designed for use on sports cars and performance-oriented vehicles. These tires are usually at their best in above freezing temperatures, and offer drivers responsive handling, improved acceleration, and strong braking capabilities.

Passenger tires are some of the most common tires you'll find on the roads today, and frequently used on coupes, sedans, hatchbacks, minivans, and other passenger vehicles. Passenger tires are available in a wide variety of types, such as all-season, winter, and ultra-high-performance.

This product is not covered by a manufacturer’s treadlife warranty.

Mileage Warranty

The maximum carrying capacity for a tire determined by the manufacturer.

Load Index

Maximum speed capability to safely carry a load for an extended period of time.

Max Speed

The maximum load carrying strength at the specified inflation pressure, also known as ply rating.

The side of the tire between the tread and rim, with cosmetic branding as well as information about the tire including manufacturer, model, size, etc.

Sidewall

An identifier of a particular tire line and size combination assigned by the tire manufacturer.

Part Number

Tread design (or tread pattern) can affect handling, traction & noise for different driving styles & road conditions.

Tread Design

Tire Weight

Quest-X

Designed for use on light trucks and SUVs such as the Ram 1500, Ford F-150, and Chevrolet Silverado. Light Truck tires are strong enough to support a truck's heavier weight and whatever else is being hauled or towed.

The diameter of a tire that is inflated without any load applied.

Overall Diameter

Ecsta Sport S PS72

This product is covered by a 30,000 mile manufacturer’s treadlife warranty. Merchandise covered by a manufacturer’s warranty is sold with the warranty by the 
        manufacturer extended to the purchaser. We will be happy to assist in obtaining fulfillment of a manufacturer’s 
        warranty. Other than applicable manufacturers’ warranties, there are no warranties, express or implied, 
        including any warranty of merchantability or fitness for a particular purpose. The only tires SimpleTire can 
        warranty are brand new defects (meaning that they have not been mounted or driven on). Any bead damaged will be 
        void of any warranty claim. Any other adjustments should be taken to the nearest authorized dealer for that 
        manufacturer. Sometimes the manufacturer also provides a treadlife warranty and mileage rating. Please be aware 
        that not all tires hold a mileage warranty from the manufacturer. Different tire models, even from the same 
        manufacturer, may or may not come with a treadlife warranty.

Standards that measure treadwear, temperature resistance and traction, example: "640 A A".  The 640 is the treadwear test and it lasted 6.4 times longer than the comparison tire tested against.  The first "A" is the traction rating using straight-line wet traction on test surfaces (see information tables tab) and the second "A" is the temperature rating by testing operation at high speeds without heat-related failure (see information tables tab).

UTQG

Wet Traction is a piece of the UTQG for example if  UTQG is: 500 AA A, the wet traction piece is the second piece, the "AA".

Wet Traction

Measured in 32nds of an inch, this metric shows how much tread life is left on a tire, with the tire's traction & stopping capabilities greatly diminished at 4/32nds and less. Tire manufacturers include "tire wear bars" at 2/32nds to indicate when your tire is worn out.

Tread Depth

The highest inflation pressure (measured in pounds of force per square inch, PSI) the tire is designed to contain, and should only be used when called for by the vehicle placard.

Inflation Pressure

The range of widths the rim of the vehicle can be for this tire to be safely mounted on.

Rim Range

Sport AS

Like  their name suggest, all season tires are designed to give drivers performance year-round. All-season tires often provide strong performance in dry and wet conditions, and suitable traction and grip in wintery weather.

This product is covered by a 40,000 mile manufacturer’s treadlife warranty. Merchandise covered by a manufacturer’s warranty is sold with the warranty by the 
        manufacturer extended to the purchaser. We will be happy to assist in obtaining fulfillment of a manufacturer’s 
        warranty. Other than applicable manufacturers’ warranties, there are no warranties, express or implied, 
        including any warranty of merchantability or fitness for a particular purpose. The only tires SimpleTire can 
        warranty are brand new defects (meaning that they have not been mounted or driven on). Any bead damaged will be 
        void of any warranty claim. Any other adjustments should be taken to the nearest authorized dealer for that 
        manufacturer. Sometimes the manufacturer also provides a treadlife warranty and mileage rating. Please be aware 
        that not all tires hold a mileage warranty from the manufacturer. Different tire models, even from the same 
        manufacturer, may or may not come with a treadlife warranty.

The measurement of width from a tires inner sidewall to the outer sidewall.

Section Width

22 tires available in 325-30zr21

In Size 325-30zr21

**Most drivers choose from our top picks**<br />They include the best matches 
                     of this tire size based on popularity, user ratings, and price.

We'll start with our 5 top picks

Based on verified customer reviews, this tire has been highly rated.

Top rated:

Best customer reviewed tire.

P Zero

Summer tires are designed for use in warmer weather or in areas where the temperatures does not drop below 40 degrees. These tires are ideal for ue in warm, dry, and wet conditions that are common in the summertime.

This tire features run flat technology that’s designed to assist the driver during a puncture of pressure loss.

Run Flat

With similar, but improved specs to the factory tire

Best match:

Best match to original tire

P Zero (PZ4-Sport)

Consistently rated as excellent by experts with the highest SimpleScore among the top 5 tires.

Top SimpleScore&trade;:

Chosen by our tire experts.

Potenza Sport

Most popular among drivers in PA

Best seller:

Go with the best seller

Iota ST68

This product is covered by a 35,000 mile manufacturer’s treadlife warranty. Merchandise covered by a manufacturer’s warranty is sold with the warranty by the 
        manufacturer extended to the purchaser. We will be happy to assist in obtaining fulfillment of a manufacturer’s 
        warranty. Other than applicable manufacturers’ warranties, there are no warranties, express or implied, 
        including any warranty of merchantability or fitness for a particular purpose. The only tires SimpleTire can 
        warranty are brand new defects (meaning that they have not been mounted or driven on). Any bead damaged will be 
        void of any warranty claim. Any other adjustments should be taken to the nearest authorized dealer for that 
        manufacturer. Sometimes the manufacturer also provides a treadlife warranty and mileage rating. Please be aware 
        that not all tires hold a mileage warranty from the manufacturer. Different tire models, even from the same 
        manufacturer, may or may not come with a treadlife warranty.

Save on this  tire today.

Best deal:

Save even more.

Grand Sport A/S

Ultra-high-performance all-season tires provide sporty traction and handling plus quick acceleration and braking in dry, wet, and light winter weather.

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ENDS IN...

325/30zR21 performance Tires

Featured

All

Vehicle

Category

Price Range

Gladiator X COMP H/P
108Y XL | In stock

Category
Performance
Vehicle
Passenger
Mileage Warranty
N/A

Load Index
2205 lbs (108)
Max Speed
186 MPH (Y)
Load Range
Extra (XL)
Sidewall
Blackwall
Part Number
1951451302
Tread Design
Asymmetrical
Tire Weight
38 lbs

Join the SimpleCrew and get exclusive perks.

Greentrac Quest-X
108Y XL | In stock

Category
Performance
Vehicle
Light Truck
Mileage Warranty
N/A

Load Index
2205 lbs (108)
Max Speed
186 MPH (Y)
Load Range
Extra (XL)
Sidewall
Blackwall
Part Number
6959613721267
Tread Design
Asymmetrical
Tire Weight
38 lbs
Overall Diameter
28.7"

Kumho Ecsta Sport S PS72
108(Y) XL | In stock

Category
Performance
Vehicle
Passenger
Mileage Warranty
30k

Load Index
2205 lbs (108)
Max Speed
186 MPH ((Y))
Load Range
Extra (XL)
Sidewall
Blackwall
UTQG
260AAA
Wet Traction
AA
Tread Depth
8.9/32nds
Inflation Pressure
50 PSI
Part Number
2349543
Tire Weight
34.6 lbs
Rim Range
11.00-12.00"
Overall Diameter
28.7"

American Roadstar Sport AS
110Y XL | In stock

Category
All Season
Vehicle
Passenger
Mileage Warranty
40k

Load Index
2337 lbs (110)
Max Speed
186 MPH (Y)
Load Range
Extra (XL)
Sidewall
Blackwall
UTQG
500AA
Wet Traction
A
Tread Depth
10/32nds
Inflation Pressure
50 PSI
Part Number
ARSS103
Tread Design
Asymmetrical
Tire Weight
33 lbs
Section Width
13.03"
Overall Diameter
28.7"

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you were looking for?

Fastest option!

(888) 262 1105

service@simpletire.com

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ENDS IN...

325/30zR21 performance Tires

Gladiator X COMP H/P 108Y XL | In stock

CategoryPerformanceVehiclePassengerMileage WarrantyN/A

Load Index2205 lbs (108)Max Speed186 MPH (Y)Load RangeExtra (XL)SidewallBlackwallPart Number1951451302Tread DesignAsymmetricalTire Weight38 lbs

Join the SimpleCrew and get exclusive perks.

Greentrac Quest-X 108Y XL | In stock

CategoryPerformanceVehicleLight TruckMileage WarrantyN/A

Load Index2205 lbs (108)Max Speed186 MPH (Y)Load RangeExtra (XL)SidewallBlackwallPart Number6959613721267Tread DesignAsymmetricalTire Weight38 lbsOverall Diameter28.7"

Kumho Ecsta Sport S PS72 108(Y) XL | In stock

CategoryPerformanceVehiclePassengerMileage Warranty30k

Load Index2205 lbs (108)Max Speed186 MPH ((Y))Load RangeExtra (XL)SidewallBlackwallUTQG260AAAWet TractionAATread Depth8.9/32ndsInflation Pressure50 PSIPart Number2349543Tire Weight34.6 lbsRim Range11.00-12.00"Overall Diameter28.7"

American Roadstar Sport AS 110Y XL | In stock

CategoryAll SeasonVehiclePassengerMileage Warranty40k

Load Index2337 lbs (110)Max Speed186 MPH (Y)Load RangeExtra (XL)SidewallBlackwallUTQG500AAWet TractionATread Depth10/32ndsInflation Pressure50 PSIPart NumberARSS103Tread DesignAsymmetricalTire Weight33 lbsSection Width13.03"Overall Diameter28.7"

Did you find what you were looking for?