Rim Recommendation for a ST225/75R15 Sized Trailer Tire

Question

Question:

I want to buy two wheels spare that fit my Loadmaster Trailer. The existing wheels have St225/75R15 Tires. Your AM20534 look like what I have, but I havent measured the bolt spacing yet. Please reply to this and I will attach a photo of my wheel for you to verify. Thank you,

asked by: Al M

1

Helpful Expert Reply:

The tire size ST225/75R15 is designed to fit 15 inch diameter wheels with a 6-7-1/2 inch width. The part # AM20534 that you referenced is a 15 inch wheel with a 6 inch width so in that regard it would work well.

The bolt pattern of this wheel is 6 on 5-1/2 inches. You will need to check out the help article I attached on determining bolt patterns to make sure you have the same.

If you have a different bolt pattern check out the other link I attached that has all of the 6 inch wide 15 inch diameter wheels we carry. You will need to select your bolt pattern from the filters and the correct fitting rims will be listed.

expert reply by: Jameson C

1

Answer 1

For a wheel that is 5 inches in width and 15 inches in diameter you would want tires that are size ST205/75-15. For the tire size ST225/75R15 you listed you would want a rim that is from 6-7 inches in width. I attached a department page that has…

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Answer 2

To measure the width of a trailer wheel you will measure from where the tire beads will seat on the wheel. That will be from the inside of the inner wheel flange to the inside of the outer wheel flange, not from edge to edge of the wheel. To…

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Answer 3

For a trailer tire, the narrowest option rim for any given tire is going to be the best option. For a 205/75-15, the best option would be a 5 inch rim. The reason that narrower is better is because it provides more support for the tire. Since…

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Answer 4

An ST205/75-15 trailer tire will fit on 15 x 5 to 15 x 6-1/2 inch wheels but will not fit a 15 x 7 inch wheel. Wheel width is not the overall width. It is the width where the tire sits, bead seat to bead seat. So if you are measuring the overall…

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Answer 5

I recommend using LED side marker lights part #AL82RB. This is a 2-wire PC-rated light that measures 2-1/2 inches long x 1-3/16 inches wide x 7/8-inch deep. If you are looking for an amber light I recommend part #AL82AB. This is the same as the red…

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Answer 6

The "D" on your new ST205/75D15 tires stands for diagonal or bias ply construction, meaning that the tire's body plies crisscross. A radial tire's plies like what you previously had on your trailer branch out from an imaginary…

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Answer 7

Any given trailer tire fits on a range of wheel widths. A 225/75-15 tire will fit on 6, 6-1/2, and 7 inch wide wheels but not a 5-1/2 inch wide wheel. I have included a link to the 15 x 6 inch wheels that we carry that will accept tire size…

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Answer 8

I'm assuming that your horse trailer is a tandem axle trailer since most are and if that is the case, then your load range C tires are more than capable of handling your trailer and your horses. The ST225/75R15 load range C tire that we carry,…

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Answer 9

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 10

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 11

The Kenda Wheel and Tire part #AM30620 and the Taskmaster part #TA89RR you referenced are very similar in a lot of ways. White wheel, 4 on 4 inch bolt pattern, Load Range of C, but the big difference is the speed rating. The Taskmaster is rated for…

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Answer 12

In order to upgrade from a 205/75-15 tire to a larger size, the 225/75-15 which is what we offer you will need to account for the reduced clearance. The new size is 1.2" larger in diameter and .8" larger in width but you only need to…

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Rim Recommendation for a ST225/75R15 Sized Trailer Tire

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