Arrives before Christmas 
Radial tire has a ply rating of 10 and a 1,520-lb maximum load at 80 psi. The 12" diameter x 4" wide aluminum trailer wheel features a 5 on 4-1/2 bolt pattern. Rustproof wheel features a split-spoke design with a machined face.
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Specs:
This tire has a 1-year worry-free guarantee. If within the first 12 months the tire is damaged in any way, it will be replaced at no charge.
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 real quick look at this Kenda Karrier ST145/R12 load range E S-trail radial trailer tire with this 12-inch aluminium wheel. This tire and wheel assembly is ideal for your trailer. This special trailer tire, or ST-tire is designed just for trailers and it does feature double steel belts and full nylon plies for superior function and long life. The computer-generated tread design that you see here and premium rubber compound materials are gonna give you superior traction in wet or dry conditions. And as I mentioned and as we have stamped here on our tire, this is an ST145/R12.
The section width is 5.8 inches and then the outer diameter when fully inflated is 21.4 inches. This is a load range E tire, meaning it has a 10-ply rating. The maximum load is 1,520 pounds at 80 PSI. And this has a speed rating of M, indicating the maximum speed of 81 miles per hour. Now, this wheel here, this is a gun metal aluminium, AM02 series wheel.
So it's durable, it's lightweight, it's rustproof. It can be used for trailers that are around water quite a bit. This features a clear coat finish on the front and on the back that's gonna protect it from scuffs and scratches. This features a split spoke design with a machine face, so it's a very attractive tire and wheel assembly. And this also features steel inserts in the lug nut wells that are gonna help keep the wheel securely in place on your trailer hub, preventing the holes from wearing down, and eliminating the need for you to constantly re-tighten the lug nuts.
Now, the dimensions of our wheel, measuring the diameter first, measuring bead seat to bead seat, and that's where the tire actually meets the wheel, it's gonna be 12 inches in diameter. And then the width of our wheel is four inches. And then the bolt pattern is 5 on 4.5 inches. And in case you don't know, the first number in the bolt pattern is the number of bolt holes, but the 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 odd number of bolt holes as we have here, you simply measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first.
The wheel capacity is 1,520 pounds. The wheel stud size is 1/2 an inch by 20. The center cap is sold separately. But if you decide to pick one up, you just wanna make sure that it fits a pilot diameter of 3.19 inches. And this tire and wheel assembly does meet the Department of Transportation specifications. Well, I think that's gonna wrap up our real quick look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
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