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345-30zr21 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.

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.

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

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

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

Section Width

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

Overall Diameter

A three-peak mountain snowflake (3PMSF) symbol branded on a tire's sidewall indicates the tire meets required performance criteria in snow testing to be considered severe snow service-rated.

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345/30zR21 Tires

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Gladiator X COMP H/P
345/30ZR21 111Y XL | In stock

Category
Performance
Vehicle
Passenger
Mileage Warranty
N/A

Load Index
2403 lbs (111)
Max Speed
186 MPH (Y)
Load Range
Extra (XL)
Tread Depth
9/32nds
Inflation Pressure
49 PSI
Part Number
1951453021
Tread Design
Asymmetrical
Tire Weight
39 lbs
Section Width
13.8"
Overall Diameter
29.2"
Three-Peak Mountain Snowflake (3PMS)
No

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345/30zR21 Tires

Gladiator X COMP H/P345/30ZR21 111Y XL | In stock

CategoryPerformanceVehiclePassengerMileage WarrantyN/A

Load Index2403 lbs (111)Max Speed186 MPH (Y)Load RangeExtra (XL)Tread Depth9/32ndsInflation Pressure49 PSIPart Number1951453021Tread DesignAsymmetricalTire Weight39 lbsSection Width13.8"Overall Diameter29.2"Three-Peak Mountain Snowflake (3PMS)No

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Did you find what you were looking for?

Gladiator X COMP H/P
345/30ZR21 111Y XL | In stock

Category
Performance
Vehicle
Passenger
Mileage Warranty
N/A

Load Index
2403 lbs (111)
Max Speed
186 MPH (Y)
Load Range
Extra (XL)
Tread Depth
9/32nds
Inflation Pressure
49 PSI
Part Number
1951453021
Tread Design
Asymmetrical
Tire Weight
39 lbs
Section Width
13.8"
Overall Diameter
29.2"
Three-Peak Mountain Snowflake (3PMS)
No

Did you find what
you were looking for?