Replacing a 145-12 Trailer Tire with a 5.30-12 Trailer Tire

Question

Question:

Can I replace my 145-12 tire on my popup with a 530-12 tire

asked by: Bo

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Expert Reply:

A 5.30-12 trailer tire and a 145-12 trailer tire are both very similar. A 5.30-12 tire measures 21.9" diameter x 5.6" wide whereas a 145-12 tire measures 21.3" diameter x 5.7" wide. This means that the new 5.30-12 tire will be .3" taller and .05" narrower than a 145-12 tire. I am almost certain you will have enough room for this but you may want to take a few measurements just to be sure.

For a 5.30-12 trailer tire, we have a load range B (840 lbs) part # AM10064, a load range C (1,045 lbs) part # AM10066, and a load range D (1,250 lbs) part # AM10068. These are all offered with a two year warranty. I have attached a sample review video for you as well.

expert reply by: Conner L

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Answer 1

So the rule of thumb with trailer tires is you want at least 3" of clearance from the top of the tire to your fender and at least 1" of clearance between the inside of the tire and your trailer's frame rail. Your current…

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Answer 2

The psi should be listed on the sidewall of the tire. It is recommended that tires always be inflated to the max psi. The max psi of the tire will depend on the tire's load range, not the weight of the trailer. For instance, we carry…

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Answer 3

I have some great 5.30-12 wheel/tire options with 5 on 4-1/2" bolt pattern for you to choose from. I like the Taskmaster 5.30-12 Bias Trailer Tire with 12" Silver Mod Wheel - 5 on 4-1/2 - Load Range C #TA26RR. However, I recommend…

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Answer 4

The Taskmaster 5.30-12 Bias Trailer Tire #TA26RR comes with a 12" white spoke wheel that uses 1/2" - 20 size wheel bolts and coned lugs. The legs themselves should be torqued between 75 - 85 ft./lb. as you can see in the attached…

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Answer 5

When our installers replace a trailer hub, there isn't a set torque spec used when tightening the spindle nut. The hub is placed on the spindle, making sure the inner and outer bearings are correctly seated. The spindle nut is then run down…

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Answer 6

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 7

The 5.30-12 wheel/tire combo you referred to would measure about 21 inches in diameter, while a 155/80-13 tire would measure about 21-3/4 inches in diameter. Going with the 5.30-12 tires will lower your ride height by a tiny bit, but not enough to…

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Answer 8

Torque specs for trailer and vehicle wheels are based on the size of the wheel stud, the type of lug nut, and the material the wheel is made of, steel or aluminum. For example, the linked chart shows you the varying torque values for a range of…

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Answer 9

It looks like your Kenda 5.30-12 Bias Trailer Tire with 12" Galvanized Wheel - 5 on 4-1/2 - Load Range C #AM30850 uses 1/2" lug bolts/nuts. If this is correct, then the correct torque specs would be 75-85 ft.-lb. If you are using…

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Answer 10

You likely have 1/2 inch studs on the trailer hub. For 1/2 inch you will want to torque the lug nuts to 75 - 85 foot pounds. For 9/16 inch lug nuts torque them to 135 - 145 foot pounds. And for 5/8 inch lug nuts torque them to 175 - 225 foot pounds.

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Answer 11

It looks like you recently purchased some Kodiak Wheel Bolts #K58WB316 and 5/8" flange nuts #95188 from us, so thank you for being a loyal customer! What you'll want to torque those to will depend on the construction of your wheels…

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Answer 12

If your current springs have 5 leaves then going to a 7 leaf spring will increase the height of the trailer a little and make the trailer more susceptible to sway. Regarding capacity if you go with springs rated higher than what is required it will…

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