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Gladiator QR15-STB ST225/75D15 D/8PLY Tire

Trailer - Bias

Rims Not Included

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8.0 Excellent

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About the Manufacturer:

Launched in 1982 as a flagship brand of American Pacific Industries (API), Gladiator Tires has built a global reputation for manufacturing indestructible rubber for off-road, commercial, and agricultural applications. Operating in over 80 countries, the brand focuses on engineered toughness, delivering superior load-carrying capacity and longevity for light trucks, SUVs, and specialty equipment.

Gladiator actively proves its extreme durability on the world’s most punishing terrains by sponsoring professional off-road racing teams and events in grueling series like SCORE International.

Why Drivers Rely on Gladiator:

Extreme Durability: Reinforced sidewalls and heavy-duty rubber compounds designed specifically to handle heavy payloads, towing, and commercial hauling.

Off-Road Pedigree: Aggressive, race-proven traction tested in brutal environments through their SCORE International partnerships.

Versatile Strength: A comprehensive lineup covering everything from aggressive mud-terrain light trucks to highly stable RV, boat, and utility trailers.

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Specifications

Specs

Value

Description

Sidewall

Not Available

Describes the sidewall appearance. Examples: BSW= Black Side Wall, WSW = White Side Wall, OWL = Outlined White Letters.

Load Index

113/108

The load index (LI) is a 2- or 3-digit number that correlates to the maximum amount of weight the tire can carry. For example, a tire with a load index of 87 indicates that the tire can carry a maximum load of 1,201 lbs. In this particularly example, 4 tires (each with a load index of 87) can carry a maximum of 4,804 lbs. Refer to your vehicle owner's manual for the recommended minimum load index.

Speed Rating
Tires speed rating

Speed rating (SR) indicates the maximum speed the tire can achieve. Higher speed ratings are typically associated with better handling capabilities. Refer to your vehicle owner's manual for the recommended minimum speed rating.

Load Range/Ply Rating

D/8PLY

Ply rating, more commonly referred to as load range, represents the strength and durability of the tire. Higher ratings may indicate your tires can handle heavier loads.

UTQG

Not Available

To help consumers evaluate their tires, the U.S. National Highway Traffic Safety Administration (NHTSA) created the Uniform Tire Quality Grading System (UTQG). The UTQG rates tires are rated on their tread-wear, traction performance, and temperature resistance. The grade for each of these can be found on the sidewall of your tire (except for winter tires and certain light truck tires).

Max Single Load(lbs)

2540

The maximum load this tire will support. Remember to multiply this number by the number of tires installed on your vehicle to get the maximum carrying capacity. This number is directly related to the Load Index.

Max Single Air Pressure(PSI)

The maximum air pressure this tire will support. This does not represent the amount of air pressure your tires should have at all times. Consult with your owner's manual to determine the best air pressure you should use for your vehicle.

Tread Depth

13.0

The amount of tread on the tire. Once the tire is worn to 2/32nds, it is considered fully used and should be replaced at that time. Most tires will have tire indicators in the grooves of the tire to help you determine when the tires are worn down to 2/32nds.

Tread Design

Nondirectional

The pattern of the grooves, lugs, voids, and sipes on a tire's surface. This design affects the tire's traction, handling, and noise characteristics. Common types include symmetrical (uniform pattern across the tire), asymmetrical (different patterns on the inside and outside for varied road conditions), and directional (designed to rotate in one direction for improved wet traction and hydroplaning resistance).

Rim Width Range

Not Available

The approved wheel rim width range this tire will support.

Measured Rim Width

Not Available

The recommended wheel width as recommended by the tire manufacturer to get the best wear us performance for this tire.

Section Width

8.8

The measurement from sidewall to sidewall.

Tread Width

Not Available

The measurement from one side of the tread to the other side of the tread.

Overall Diameter

28.3

The height of the tire when fully inflated.

Manufacturer Part Number

1942042252

Manufacturer part number (sku)

Financing

You can pre-qualify to finance your tires, or you can simply choose Affirm at check-out. Fill out your information and choose the monthly payment that works best for you!

Select 3, 6 or 12 monthly payments, with rates from 10% - 36% APR. 18 months financing available for orders over $1000.00

Checking your eligibility won't affect your credit. You will receive an immediate answer from Affirm.

Affirm has no hidden fees or costs and is completely secure.
Quick and easy, real tire financing, real fast! You can apply in advance and know you can shop for tires when you are ready.

To learn more visit Buy With Affirm or read their convenient Affirm FAQ's. All credit decisions are made by Affirm.

To contact Affirm regarding your account, please call 1-855-423-3729.

No hidden fees

Affirm has no hidden fees or costs and is completely secure

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You choose the payment schedule that works for you

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Pay over time

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Learn more about Affirm tire financing options

No Credit? No problem!

Lease your tires with Katapult!

With a small down payment, and easy payments you can lease your tires. Payments are coordinated with your payday. Read more here about how Katapult works.

No credit required

Simple initial payment

No late fees ever

Payoff early is desired

Learn more about Katapult lease-to-own tire financing

Size Details

Size	Load Index/ Speed index	UTQG	Load Range/Ply Rating	Overall Diameter	Section Width	Rim Width Min	Rim Width Max	Rim Width Meas	Tread Depth (in)	Max Single Air Pressure (PSI)	Max Single Load (lbs)	Max Dual Air Pressure (PSI)	Max Dual Load (lbs)	MFG #
8-14.5	120J	-	G/14PLY	27.8	8.0	-	-	-	8.0	115	3100	-	-	1942048455
ST175/80D13	91/87J	-	C/6PLY	24.0	7.0	-	-	-	8.0	50	1360	50	1195	1942041831
ST205/75D14	100/96J	-	C/6PLY	26.2	8.0	-	-	-	8.0	50	1760	50	1550	1942042041
ST205/75D15	101/97J	-	C/6PLY	27.1	8.0	-	-	-	8.0	50	1820	50	1602	1942042051
ST205/90D15	114/109J	-	E/10PLY	29.6	8.0	-	-	-	13.0	80	2335	80	2040	1942042092
ST225/75D15	113/108J	-	D/8PLY	28.3	8.8	-	-	-	13.0	65	2540	65	2200	1942042252
ST225/90D16	115/110J	-	E/10PLY	31.8	6.9	-	-	-	13.0	80	2755	80	2470	1942042261
ST225/90D16	121/117J	-	F/12PLY	31.8	8.5	-	-	-	13.0	95	2910	95	2605	1942042262
ST235/80D16	123/119J	-	E/10PLY	30.8	9.3	-	-	-	13.0	80	3420	80	3000	1942042863