Radial tire has 10-ply rating and 2,830-lb max load at 80 psi. 15" x 6" Aluminum wheel has 6 on 5-1/2 bolt pattern. Rustproof aluminum wheel has a 6-spoke design in black. Complimentary roadside assistance included.
Features:
Specs:
This tire-and-wheel assembly comes with complimentary roadside assistance for 2 years. If your RV or trailer has a flat tire, call the help line and a technician will come change the flat for you. You can call 24 hours a day, 7 days a week, and 365 days a year from anywhere in the United States, Canada, or Puerto Rico.
The tire on this assembly has a 1-year No Excuses Guarantee. If within the first 12 months the tire is damaged in any way that's not covered by warranty, it will be replaced at no charge. You will also be compensated a flat labor rate for the cost of mounting the replacement tire.
This aluminum wheel comes with steel inserts in the lug nut wells. The inserts are pressed into the aluminum, and they help prevent the holes from wearing down over time. This ensures that the wheel stays secured to your trailer hub and that you won't have to constantly retorque the lug nuts.
This radial ply tire from Westlake is constructed with double steel belts and double polyester cords for increased durability. A protective layer of nylon is wrapped around the steel belts to help prevent tread separation.
The standard tread on this tire has solid, continuous ribs, and there are very few sipes (or thin grooves) cut into the rubber. This tire is designed for use on trailers, so it doesn't require the level of traction that would be needed on a vehicle that is braking or steering.
Radial ply tires are designed for trailers that are towed on the highway. The cords on a radial tire are positioned at a 90-degree angle to the direction of travel so that they lay across the width of the tire from wheel lip to wheel lip. This construction prevents the cords from rubbing against one another when the tire flexes, unlike the cords on a bias ply tire. As a result, radial tires have less rolling resistance and heat buildup, which leads to a longer tread life and improved steering at higher speeds.
Determining the Bolt Pattern
The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.
To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)
On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)
Measuring the distance from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everybody. Andy here with etrailer.com. Let's take a look together at this Westlake ST22575R15 load range E radial trailer tire with this 15 inch Osprey aluminum wheel with this six on five and a half inch bolt pattern. Now this tire and wheel assembly is going to be great for RVs, campers, and trailers. And the special trailer tire or ST tire has sturdy sidewalls so that it can handle heavy loads. This tire is created specifically for trailers and it's not intended for use on other vehicles.
This radial tire is constructed with double steel belts and double polyester plies for a long life nylon tread forming belt overlays help to prevent tread separation and the tread wear indicator is going to make it easy to see the tread depth. Now as you know, radial ply tires are designed for trailers that are towed on the highway. The cords on a radial tire are positioned at a 90 degree angle to the direction of travel so that they lay across the width of the tire from wheel lip to wheel lip. This construction prevents the cords from rubbing against one another when the tire flexes, unlike the cords on a bias ply tire. So as a result, radial tires have less rolling resistance and heat buildup, which leads to a longer tread life and improved steering at higher speeds.
Now as I mentioned at the beginning of our time together, and as we have stamped here on our tire, this is an ST 22575R15 tire. The section width is 8.8 inches and the outer diameter is 28.3 inches. This is a load range E tire, meaning it has a 10 ply rating. The maximum load is 2,830 pounds at 80 PSI. And this has a speed rating of L, indicating a maximum speed of 75 miles per hour.
Now this aluminum wheel is durable, it's lightweight and rust proof. As you can see, it does feature this attractive Osprey series six spoke design in matte black. And it also features an automotive grade clear coat finish on the front. It's going to protect that wheel from scuffs and scratches. This does also feature steel inserts in the lug nut wells to help keep this wheel securely in place on your trailer hub, preventing the holes from wearing down and eliminating the need for the constant re-tightening of the lug nuts.
Now the diameter of our wheel, measuring bead seat to bead seat, is 15 inches and the width, again, measuring bead seat to bead seat, is six inches wide. And this has a bolt pattern of six on five and a half inches. And the first number in the bolt pattern, if you don't happen to know, is the number of bolt holes. And then that second number is the diameter in inches of the circle on which the bolt holes sit. So to determine the bolt circle diameter on wheels with an even number of bolt holes, as we have here, you're simply going to measure from the center of one bolt hole to the center of the bolt hole directly across from it. The wheel capacity is 2,830 pounds. The wheel stud size is a half an inch by 20, the center cap is sold separately, but if you pick one up, you do wanna make sure that it fits the pilot diameter of 4.25 inches. Now this tire and wheel assembly does meet the Department of Transportation specifications. The tire meets the federal Motor Vehicle Safety standard specifications and the wheel meets the SAE J1204 standards. One final note, this tire and wheel assembly does come with complimentary roadside assistance for two years. So if your RV or trailer has a flat tire, simply call their helpline and a technician will come and change that flat for you. You can call their number 24 hours a day, seven days a week, and 365 days a year from anywhere here in the United States, Canada, or Puerto Rico. Well, I think that's gonna wrap up our look today. I do hope that our time together was helpful for you. Again, my name is Andy, thank you for joining me.
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