Can Trailer Tires Be Changed From 15 Inch To 16 Inch If Trailer Has Frame Clearance Issues

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Question:

I want to convert my trailer wheels and tires from 225R - 75-15 with a 6 on 5 1/5 P.P.to the same spec. as a 16. The reason for doing this is to step up to the Americana Tire rated @ 3600 lbs.Your part # for the wheel/tire combo is AM32764. What is the offset of the wheel and will it be the same as my stock 15 steel wheel is it an industry standard? I have a close tolerance from the tire to the trailer.

asked by: Nick

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Expert Reply:

The standard offset for trailer wheels is zero to keep the load on the trailer centered on the tire. The Karrier ST235/85R16 Radial Trailer Tire with 16 inch White Wheel - 6 on 5-1/2 - Load Range E, item # AM32764, comes with a 0 inch offset wheel, is 235 millimeters wide and has an overall height of 31.61 inches. Your 225R-75-15 is approximately 28.3 inches in height and will be 10 millimeters, .39 inches, thinner than the ST235/85R16 Radial Trailer Tire.

I would recommend staying with a thinner ST225/75R15 radial trailer tire, like the Karrier ST225/75R15 Radial Trailer Tire with 15 inch White Wheel - 6 on 5-1/2 - Load Range D, item # AM32664, if you are having trouble with the tolerance between the trailer and the tire.

If you are looking for the weight capacity of a 16 inch load range E wheel and tire and the 10 millimeter extra width and 3.31 inches extra height will not be a problem then the # AM32764, wheel and tire would be a good choice.

expert reply by: Robert G

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Answer 1

Provided that you have enough space around the tire for a larger size, and you understand that the axle rating remains the same (the larger tire does not allow you to carry more weight) you can change to a larger size. However, you also have to…

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Answer 2

Leaf springs are indeed supposed to flex and will flatten out some when under load. This reduces the distance from the top of the axle to the underside of the trailer above it. There isn't a specific distance this has to be but if the trailer…

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Answer 3

A 15x6 inch size wheel is normally interchangeable with a 15x5 size wheel. The 6 inch and 5 inch measurement being the width of the wheel. A tire will normally fit on a range of wheel widths. Where you want to pay attention to the different widths of…

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Answer 4

The first thing you will need to check is if there is enough space around the existing tires to use the larger size. Based on the old size you have, 235/75-15 (which isn't a common trailer tire size) the tires are approximately 28.8 inches tall…

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Answer 5

Good news, I can help you pick out a great 6 on 5-1/2 tire and wheel for all you need. The Taskmaster #TA39VR with steel white mod wheel will be a great 10 ply rated tire and wheel for you horse trailer. This tire and wheel combinations is rated for…

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Answer 6

The Goodyear Endurance trailer tires are the only USA made trailer tires out there. We do not carry them in your size or the close trailer tire size of 235/85-16 that would fit your same wheel. If you want a tire and wheel, we have the Kenda…

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Answer 7

I checked with Dexter, manufacturer of many trailer parts, and according to them there should be at least 1 inch of space between the tires when under load. So once your trailer is loaded and ready to tow, if you have more than 1 inch of space…

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Answer 8

You can interchange those tires in an emergency, like if you are off road somewhere and you have a tire on your trailer blow. But you don't want to have two different tire sizes on your trailer for very long. I would only leave it on there long…

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Answer 9

The 16 inch size you mentioned isn't a standard trailer tire size so if the plan was to install a passenger vehicle tire on the trailer that would not be recommended at all. The closest trailer tire size we have to what you need is the 235/80-16…

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Answer 10

Trailer tire failure is usually a result of excess heat, which can arise from a variety of potential causes. The first important factor to always consider is the inflation of your trailer tires. A tire that is under or over-inflated will build up…

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Answer 11

Changing to a larger diameter radial tire from a smaller bias ply type can offer several advantages. In general radial trailer tires run cooler than bias ply tires, especially when the tire is under a load. A tire that runs cooler will last longer. A…

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Answer 12

The wheels you have now will have no problem with the PSI of 110 that you mentioned but the valve stems might depending on what's in there now. Best option will be to order new valve stems with the tires that have the higher pressure rating like…

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Can Trailer Tires Be Changed From 15 Inch To 16 Inch If Trailer Has Frame Clearance Issues

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