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st225-75r15 tires

Road Max ST

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  
                (Single wheel applications / Dual wheel applications).

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

100 tires available in st225-75r15

In Size st225-75r15

**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

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

Top SimpleScore&trade;:

Chosen by our tire experts.

Vantra Trailer (ST01)

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

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st225/75R15 national Tires

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National Road Max ST
ST225/75R15 113M D | In stock

Vehicle
Trailer
Mileage Warranty
N/A
Load Index
2535 lbs/2205 lbs (113/108)

Max Speed
81 MPH (M)
Load Range
D (8 Ply)
Sidewall
Blackwall
Tread Depth
8/32nds
Inflation Pressure
65 PSI
Part Number
NRM51
Tread Design
Symmetrical
Tire Weight
24.69 lbs
Section Width
8.78"
Overall Diameter
28.31"

Join the SimpleCrew and get exclusive perks.

National Road Max ST
ST225/75R15 117M E | In stock

Vehicle
Trailer
Mileage Warranty
N/A
Load Index
2833 lbs/2469 lbs (117/112)

Max Speed
81 MPH (M)
Load Range
E (10 Ply)
Sidewall
Blackwall
Tread Depth
8/32nds
Inflation Pressure
80 PSI
Part Number
NRM53
Tread Design
Symmetrical
Tire Weight
26.37 lbs
Section Width
8.78"
Overall Diameter
28.31"

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st225/75R15 national Tires

National Road Max STST225/75R15 113M D | In stock

VehicleTrailerMileage WarrantyN/ALoad Index2535 lbs/2205 lbs (113/108)

Max Speed81 MPH (M)Load RangeD (8 Ply)SidewallBlackwallTread Depth8/32ndsInflation Pressure65 PSIPart NumberNRM51Tread DesignSymmetricalTire Weight24.69 lbsSection Width8.78"Overall Diameter28.31"

Join the SimpleCrew and get exclusive perks.

National Road Max STST225/75R15 117M E | In stock

VehicleTrailerMileage WarrantyN/ALoad Index2833 lbs/2469 lbs (117/112)

Max Speed81 MPH (M)Load RangeE (10 Ply)SidewallBlackwallTread Depth8/32ndsInflation Pressure80 PSIPart NumberNRM53Tread DesignSymmetricalTire Weight26.37 lbsSection Width8.78"Overall Diameter28.31"