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Sumitomo ST778+ SE 285/75R24.5 G/14PLY Tire

Commercial Truck - Steer
Commercial Steer

Rims Not Included

easy test score

8.6 Excellent

Availability

In Stock

Per Tire:

$377.46

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Was $471.83

$100.92

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About the Manufacturer:

Sumitomo Tires, founded in 1909 in Japan, is a major global tire manufacturer recognized for its precision engineering and advanced technology. Operating in over 150 countries, Sumitomo is trusted for its high-performance and reliable tires, offering superior handling, durability, and safety for a wide range of vehicles including passenger cars, trucks, buses, and motorcycles. Through its Falken brand, Sumitomo actively participates in demanding motorsport events like the Nürburgring 24 Hours, demonstrating the extreme performance and endurance of its tire technology.

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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

144/141

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

G/14PLY

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)

6175

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)

110

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

18.0

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

Not Available

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

8.25

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

Section Width

11.0

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

41.3

The height of the tire when fully inflated.

Manufacturer Part Number

5532878

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

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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.

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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 #
11R22.5	146/143L	-	H/16PLY	41.5	11.3	-	-	8.25	18.0	120	6610	120	6005	5532852
11R24.5	149/146L	-	H/16PLY	43.2	11.3	-	-	8.25	18.0	120	7160	120	6610	5532859
285/75R24.5	144/141L	-	G/14PLY	41.3	11.0	-	-	8.25	18.0	110	6175	110	5675	5532878
295/75R22.5	144/141L	-	G/14PLY	40.1	11.5	-	-	9.0	18.0	110	6175	110	5675	5532875