How Wide of a Rim is Recommended for the Tire Size ST225/75R15

Question

Question:

I just purchased a new trailer. The tire size is ST225/75R15. The wheels are 5 inches in width. Is this enough rim width?

asked by: Ed

0

Expert Reply:

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 all of our tires that are that size. I also attached a page on trailer tire sizing that has a chart that show what tire sizes go with the different rim sizes.

expert reply by: Jameson C

0

Brent

12/11/2025

Would be helpful if the dept. page was available here also.

Reply

Jameson C.

12/11/2025

@Brent Here's link attached to this message. It is on the page down below as well.

Helpful Links

dept-pg-tires_and_wheels-sf-tire_only-gw-205%7c75%7e15.aspx

Reply

Cliff L.

12/15/2025

Is an 8” GM rally wheel too much for a trans eagle 225/75/15 load range f radial ? Will the rim width compromise the integrity and/or functionality of the tire?

Reply

Jameson C.

12/15/2025

@CliffL well for one this tire isn't rated for use on a vehicle and its for a narrower wheel. It's hard to say exactly how it would perform though.

Reply

Answer 1

Hi Jeff! So the only combo with the 5 on 4-1/2 inch bolt pattern we have that provides that Load Range E rating is the Taskmaster Provider #TA56AR. It doesn't look like that tire is available by itself, either. This would certainly give you more…

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Answer 2

You were given some correct information. The new trailer wheels you purchased that have a larger pilot hole will still be compatible with your hubs in terms of being properly centered. The key is indeed the coned lug bolts, such as #RG02-020. These…

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Answer 3

Hello John, thanks for reaching out. Sadly, we do not offer that size Goodyear tire on a 5-lug wheel. We can offer you a ST225/75R15 tire on a 5-lug aluminum wheel, but it would not be a Goodyear. Our selection of Goodyears is pretty limited at the…

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Answer 4

The importance of matching a wheel's pilot hole diameter to the part of the hub that fits through it depends on the type of wheel. A hub-centric wheel uses the pilot hole to center the wheel on the hub and also to bear some of the total weight…

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Answer 5

Great question, William! The Karrier ST225/75R15 #KE63KV is a KR35 while the Karrier ST225/75R15 #AM10303 is a KR03 according to Kenda. There is a slight variation in the tread pattern and from what Kenda says about them it looks like the KR03 is…

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Answer 6

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 7

Mod wheels such as the one in tire and wheel combo #LHACK121 have the distinctive round holes. A "regular" trailer wheel on the other hand has more triangle shaped holes and is referred to as a "spoke" wheel. Take a look at…

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Answer 8

A 205/75-15 size tire can actually fit on a wheel from 5 to 6-1/2 inches wide. With that being said, it's generally better to go with the thinnest wheel your tire fits on because that puts the weight on the wheel in the most vertical position so…

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Answer 9

Just like the tires for your trailer, the combined load capacity of your wheels should at least match the loaded weight of your trailer. Ideally though they will have a larger combined capacity than your trailer weight to provide a nice safety…

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Answer 10

So long as a hub uses the correct bearings that match the dimensions of the spindle that is on the axle there is no worry about using two different brands of products, such as a Dexter hub on a Lippert axle. That in itself is not a concern. When a…

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Answer 11

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…

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Answer 12

A replacement tang-style spindle washer like part #5-101 is intended to be installed behind the castle nut and have its prongs bent down so that they prevent the castle nut from rotating on an E-Z Lube type spindle. The castle nut holds the washer in…

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How Wide of a Rim is Recommended for the Tire Size ST225/75R15

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