Do I Need to Measure the Actual Diameter of My Tire When Choosing a Tire or Wheel Cover

Question

Question:

Looking at wheel covers to protect tires from UV rays while camping. Have 22.5 tires on the coach. Do I use that measure for diameter or actual diameter when trying to decide which fits

asked by: Reid P

1

Helpful Expert Reply:

You will want to take the measurement of the actual diameter of your tire when choosing a tire cover. I am attaching an article on how to determine the size of your tire for you to review as well as a link to our selection of tire covers. If you need help determining which cover will fit best if you could let me know what the whole number is on your tire I can narrow your search down for you.

expert reply by: Jon G

1

Answer 1

Since the overall tire diameter of your 175/80-13 is 24 inches you'd need a cover like the part #290-3954 which fits tire diameters between 24 and 26 inches.

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Answer 2

The overall diameter of your tire size 205/75-15 is 27-1/4 inches so a cover set like the part #290-3953 would work great as it fits tire diameters that are between 27 and 29 inch. This cover gives you two tire covers that are made from a long…

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Answer 3

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 4

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 5

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 6

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

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Answer 7

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6-1/2 inch whereas the 225/75-15 fits widths that are 5 inch to 6 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 8

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…

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Answer 9

You can add larger wheels and tires to a trailer as long as you have enough room for the larger size. The main clearance issues we find when putting larger tires and wheels on a trailer is from the top of the tire to the fender and from the inside…

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Answer 10

Good morning, Cliff. As of today (3/27/24) we are expecting the #KE33JR tire/wheel combo to be in stock in about 2 weeks. Hopefully this means we can take our own pictures and put them on the site within maybe about 3-4 weeks from now. What I can…

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Answer 11

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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Answer 12

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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