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315-30r18 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

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.

Three-Peak Mountain Snowflake (3PMS)

6 tires available in 315-30r18

In Size 315-30r18

**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

With similar, but improved specs to the factory tire

Best match:

Best match to original tire

NT01

Track Competition tires are built for the drivers who want track-capable performance on the street and track. Track Competition tires are built to last slightly longer than competition only tires while also providing strong everyday performance.

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

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

Rim Range

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

Top SimpleScore&trade;:

Chosen by our tire experts.

Azenis RT-615K+

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.

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315/30R18 gladiator Tires

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Gladiator X COMP H/P
315/30ZR18 99Y XL | In stock

Category
Performance
Vehicle
Passenger
Mileage Warranty
N/A

Load Index
1709 lbs (99)
Max Speed
186 MPH (Y)
Load Range
Extra (XL)
Sidewall
Blackwall
Tread Depth
9/32nds
Inflation Pressure
49 PSI
Part Number
1951458301
Tread Design
Asymmetrical
Tire Weight
30 lbs
Section Width
12.6"
Overall Diameter
25.5"
Three-Peak Mountain Snowflake (3PMS)
No

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ENDS IN...

315/30R18 gladiator Tires

Gladiator X COMP H/P315/30ZR18 99Y XL | In stock

CategoryPerformanceVehiclePassengerMileage WarrantyN/A

Load Index1709 lbs (99)Max Speed186 MPH (Y)Load RangeExtra (XL)SidewallBlackwallTread Depth9/32ndsInflation Pressure49 PSIPart Number1951458301Tread DesignAsymmetricalTire Weight30 lbsSection Width12.6"Overall Diameter25.5"Three-Peak Mountain Snowflake (3PMS)No

Join the SimpleCrew and get exclusive perks.

Did you find what you were looking for?

Gladiator X COMP H/P
315/30ZR18 99Y XL | In stock

Category
Performance
Vehicle
Passenger
Mileage Warranty
N/A

Load Index
1709 lbs (99)
Max Speed
186 MPH (Y)
Load Range
Extra (XL)
Sidewall
Blackwall
Tread Depth
9/32nds
Inflation Pressure
49 PSI
Part Number
1951458301
Tread Design
Asymmetrical
Tire Weight
30 lbs
Section Width
12.6"
Overall Diameter
25.5"
Three-Peak Mountain Snowflake (3PMS)
No

Did you find what
you were looking for?