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st175-80r13 tires

Mastertrack

These tires are intended for trailer axles only, and can withstand long miles of in-line hauling. They're not meant for steering or drive axle applications, and their design offers years of reliable service in trailer applications. Choose from favorites like Gladiator, Carlisle and Goodyear trailer tires.

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

69 tires available in st175-80r13

In Size st175-80r13

**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

Karrier

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

Rim Range

Most popular among drivers in PA

Best seller:

Go with the best seller

Road Max ST

The maximum carrying capacity for a tire determined by the manufacturer  
                (Single wheel applications / Dual wheel applications).

ENDS IN...

st175/80R13 unicorn Tires

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Maximum Load Index

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Speed Rating

Minimum Speed Rating

Unicorn Mastertrack
ST175/80R13 91L C | In stock

Vehicle
Trailer
Mileage Warranty
N/A
Load Index
1356 lbs (91)

Max Speed
75 MPH (L)
Load Range
C (6 Ply)
Sidewall
Blackwall
Tread Depth
9/32nds
Inflation Pressure
50 PSI
Part Number
HFST38
Tread Design
Symmetrical
Tire Weight
26.36 lbs
Section Width
7"
Overall Diameter
24"

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you were looking for?

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(888) 262 1105

service@simpletire.com

ENDS IN...

st175/80R13 unicorn Tires

Unicorn MastertrackST175/80R13 91L C | In stock

VehicleTrailerMileage WarrantyN/ALoad Index1356 lbs (91)

Max Speed75 MPH (L) Load RangeC (6 Ply) SidewallBlackwall Tread Depth9/32nds Inflation Pressure50 PSI Part NumberHFST38 Tread DesignSymmetrical Tire Weight26.36 lbs Section Width7" Overall Diameter24"

Join the SimpleCrew and get exclusive perks.

Did you find what you were looking for?

Unicorn Mastertrack
ST175/80R13 91L C | In stock

Vehicle
Trailer
Mileage Warranty
N/A
Load Index
1356 lbs (91)

Max Speed
75 MPH (L)
Load Range
C (6 Ply)
Sidewall
Blackwall
Tread Depth
9/32nds
Inflation Pressure
50 PSI
Part Number
HFST38
Tread Design
Symmetrical
Tire Weight
26.36 lbs
Section Width
7"
Overall Diameter
24"

Did you find what
you were looking for?