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Dunlop Grandtrek ST30 225/55R19 99H BSW Tire

Truck/SUV - Highway
Highway All Season

Rims Not Included

easy test score

9.3 Superb

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About the Manufacturer:

Dunlop Tires, founded in 1889 in Ireland, is a historic brand synonymous with pioneering tire technology and high-performance. Operating globally, Dunlop is renowned for its rich motorsport heritage and cutting-edge innovation, offering superior grip, responsive handling, and durability for passenger cars, motorcycles, and specialist racing vehicles. Dunlop boasts an unparalleled legacy in motorsport, having equipped the winning car in more 24 Hours of Le Mans races than any other tire manufacturer, showcasing its endurance and performance prowess.

The Dunlop brand is relaunching under Falken as a Tier 1 product in December 2025, starting with the Blue Response A/S line.

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Specifications

Specs

Value

Description

Sidewall

BSW

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

Load Index

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

Not Available

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)

1709

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

10.0

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

6.0-8.0

The approved wheel rim width range this tire will support.

Measured Rim Width

7.0

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

Section Width

9.1

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

28.7

The height of the tire when fully inflated.

Manufacturer Part Number

54900520

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

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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.

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Size Details

Size	Load Index/ Speed index	UTQG	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 #
225/55R19	99H	-	28.9	9.1	6.0	8.0	7.0	10.0	51	1709	-	-	54900500
225/55R19	99H	-	28.7	9.1	6.0	8.0	7.0	10.0	51	1709	-	-	54900520
225/60R18	100H	360AB	28.6	9.0	6.0	8.0	6.5	10.0	51	1764	-	-	290126787
225/60R18	100H	360AA	28.6	8.9	6.0	8.0	6.5	10.0	-	1764	-	-	290126788
225/60R18	100H	360AA	28.7	9.1	6.0	8.0	7.0	10.0	51	1764	-	-	54900100
225/60R18	100H	360AA	28.7	9.1	6.0	8.0	6.5	10.0	51	1764	-	-	57000560
225/60R18	100H	360AA	28.6	9.0	6.0	8.0	6.5	10.0	51	1764	-	-	57001780
225/65R17	102H	360AA	28.5	8.9	6.0	8.0	6.5	10.0	-	1874	-	-	290126789
225/65R17	102H	360AA	28.5	9.0	6.0	8.0	6.5	10.0	51	1874	-	-	290126785
225/65R17	102H	360AA	28.5	-	-	-	-	10.0	-	1874	-	-	290126790
225/65R17	102H	360AA	28.5	-	-	-	-	10.0	51	1874	-	-	290126791
225/65R17	102H	360AA	28.4	8.8	6.0	8.0	6.5	10.0	51	1874	-	-	57000430
225/65R17	102H	360AA	28.5	9.0	6.0	8.0	6.5	10.0	51	1874	-	-	57001830
225/65R17	102H	360AA	28.5	9.0	6.0	8.0	6.5	10.0	51	1874	-	-	57001840
P245/65R17	105S	360AB	29.5	9.8	7.0	8.5	7.0	10.0	44	2039	-	-	290126783