Should Trailer Tires be Inflated to Max Pressure Rating on Sidewall

Question

Question:

I have haida trailer tires on my horses trailer. Class e st225/75r15. It says max load 80psi cold. Is that correct? Dont want to over inflate as l haul 3 hrs in trips?

asked by: Cindy J

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Expert Reply:

Yes, 80 psi cold is correct pressure to use in your tires. Basically you need to inflate the tires to 80 psi at the beginning of the day when they are the coldest and from there any pressure fluctuations due to heat would be acceptable.

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

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 3

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 4

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 5

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 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 #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 8

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 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

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 11

Hey Clarence. There's no way to look at a tire or wheel and tell if it's a 5 on 4-1/2 or a 5 on 5 but you can take a real quick measurement to figure it out. If you'll look at the picture below you'll see a wheel with a red line on…

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Answer 12

Hello Jason, thanks for reaching out. Yes, the Kenda Karrier KR53 ST205/75R15 tire with 15" black aluminum wheel #KE58JV does come balanced from the factory. Trailer tire and wheel assemblies are balanced by matching the tire’s high and low…

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Should Trailer Tires be Inflated to Max Pressure Rating on Sidewall

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