Load Range D Trailer Wheel and Tire Similar to Size 255/75-15

Question

Question:

I have 18” custom rims on my boat trailer w/ 255/45r18 tires and wondering why none of the manufacturers offer ST classified range D or E tires for these new trailers. I pull a boat a lot of miles and would appreciate any help solving this issue

asked by: Bubba B

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Expert Reply:

18 inch trailer tires aren't really a standard option so there aren't any ST rated tires for that size wheel. I'd be interested to know if the wheels and tires you have now are actually rated for trailer use or if they were designed for a vehicle instead which isn't recommended. The diameter of your current tire size is 27 inch which means the closest trailer tire and wheel setup that's available would be the size 205/75-15 which in a Load Range D we have the part # TA87VR which is on a 6 on 5-1/2 inch bolt pattern.

For something a little nicer looking that has same bolt pattern and is Load Range D we have the Provider ST225/75/15 part # A225R6BMMFL which has an overall diameter of 28.3 inches.

expert reply by: Jameson C

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Answer 1

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 2

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 3

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 4

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 5

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 6

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 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 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 8

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 9

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 10

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

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Answer 11

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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Answer 12

Hi Craig! Thanks for the pictures! ^___^ The Americana Aluminum Trailer Wheel - Split Spoke - 15" x 6" Rim - 5 on 4-1/2" #AM63FV is very very similar to the Sendel T03 wheel. To the point of not being able to tell them apart, to be…

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Load Range D Trailer Wheel and Tire Similar to Size 255/75-15

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