This listing is for new Power King Premium Trailer ST225/75D15 D/8PR BSW Tires. Manufacturer part number: STB51. The Power King Premium Trailer is an economical bias-ply tire for most towed trailer applications. It is a dedicated ST tire, with a grooved circumferential rib tread pattern most common on trailers designed for hauling on paved roads. Also, the bias-ply casing has the advantage of a thicker sidewall vs radial tires. This makes the Power King Premium Trailer extra robust and resistant to road hazards and pot holes that could lead to flats.
Specs:
Value:
Description:
Sidewall
BSW
This describes the sidewall appearance. Examples include Black Sidewall, White Sidewall, and White Letters.
Load Index
113/108
The load index (LI) is a 2 or 3 digit number that corrolates 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 maximim load of 1,201 lbs. In the case of our example the 87 identifies the tires ability to carry a maximum of 1,201 lbs. So 4 tires will carry a maximum of 4,804 lbs. Refer to your vehicle owner's manual for the recommended minimim Load Index. It is not recommended to install tires with a lower Load Index. By doing so, this could cause your tires to be overloaded thus potentially causing a blowout.... read moreread less
Speed Rating
L
Speed Ratings (SR) are based on laboratory tests and indicates the maximum speed the tire can achieve. These tests are based on limited time trials. Higher speed rating tires typically will yield better handling capabilities, but may often result in lower mileage. Refer to your vehicle owner's manual for the recommended minimum Speed Rating. It is not recommended to install a tire with a lower speed rating as it could affect the handling of your vehicle. It is important to note that speed ratings only apply to tires that have not been damaged, altered, under-inflated or overloaded. Additionally, most tire manufacturers maintain that a tire that has been cut or punctured no longer retains the tire manufacturer's original speed rating, even after being repaired because the tire manufacturer can't control the quality of the repair.... read moreread less
Ply Rating
D/8PR
Ply Rating is related to the max load capacity. This value can be defined with a letter or number. The higher the number/letter, the higher the load capacity.
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). Click here for more information.... read moreread less
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)
65
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
8.0
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
Nondirectional - most common, same tread pattern on inside & outside of the tire. Can be rotated to all four corners of vehicle. Asymmetrical - tread pattern is different on the inside to the outside of the tire, and must be mounted properly. Can be rotated to all four corners of the vehicle. Directional tires - roll in only one direction, must be mounted properly. Once mounted they must remain on the same side of the vehicle, and only be rotated front to rear.... read moreread less
Rim Width Range
Not Available
The approved wheel rim width range this tire will support.
Measured Rim Width
6.0
The recommended wheel width as recommended by the tire manufacturer to get the best wear us performance for this tire.
Section Width
28.6
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
28.6
The height of the tire when fully inflated.
Manufacturer Part Number
STB51
Manufacturer part number (sku)
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Power King STB51 Premium Trailer ST225/75D15 D/8PR BSW
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