Will a 225/75-15 Trailer Tire Fit on a 15x6 Inch Wheel on a Boat Trailer

Question

Question:

I have boat trailer with st225/75r15 mounted on 15x7 rim with 6 lug pattern. Im looking for a mounted spare tire but am having trouble finding anything mounted on a 15x7 rim. Would it be acceptable to use a tire mounted on a 15x6 rim a s a spare?

asked by: Doug

1

Helpful Expert Reply:

A 7 inch wide wheel (on the inside where the tire sits) is the widest wheel that a 225/75-15 tire will fit on. The same tire size will also fit on a 15x6 or 15x6-1/2 wheel. You would have no problem using any of the 3 sizes as a spare. I have included a link to the tire and wheel combos in this size for you.

The key is to get one that is the same construction type as the other tires on the trailer. So if the other tires are bias ply, load range D you would choose that type. Or vice versa for radial or a different load range.

expert reply by: Michael H

1

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Answer 1

Yes, you are correct, your 225/75R15 tires will work on the the Dexstar Steel Spoke Trailer Wheel, #AM20532. The 225/75R15 tire is recommended for mounting on 6, 6-1/2 and 7 inch wide wheels. This wheel is rated at 2830 lbs capacity @ 80 psi. You…

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Answer 2

The difference on a 15X5 tire and a 15X6 is the width of the wheel. The 15X5 being 5 inch width and the 15X6 being a 6 inch width. I recommend The Dexstar Steel Spoke Trailer Wheel #AM20428. The wheel has a 5 on 5 bolt pattern with a pilot diameter…

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Answer 3

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 4

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 5

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 6

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 7

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 8

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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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 inch whereas the 225/75-15 fits widths that are 5 inch to 6-1/2 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 10

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 11

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 12

I apologize for any confusion on what the proper torque specs are for 1/2 inch lug nuts on trailer wheels. I attached a picture of a chart to the right that details what the proper torque specs are for a trailer wheels lugs based on lug size, wheel…

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Will a 225/75-15 Trailer Tire Fit on a 15x6 Inch Wheel on a Boat Trailer

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