ST175/80R13 Trailer Tire Recommendation for a Boat Trailer to Replace 185/80R13

Question

Question:

Can I replace 185/80R13 load range C tires on a boat trailer with your Karrier ST175/80R13 load range D tires? I weighed my boat and trailer single axle trailer and it weighs 3000 lbs. My old tires are rated for 1480 lbs or 2960 together. Should I go with the ST 175/80R13 load range D tires? My old tires are like new but have a 2009 DOT date on them. I dont know how old is too old for a tire. I dont want any problems Thanks

asked by: Frank

0

Expert Reply:

From a size point of view you could go from a 185/80R13 to a ST175/80R13. They would only be a tiny bit smaller.

Based on the weight of your trailer and boat I would recommend going with the Load Range D like part # AM10210 as it has a capacity of 1,610 lbs at 65 psi which would be more than you would need.

Typically we recommend replacing trailer tires around 7 years of age.

expert reply by: Jameson C

0

Answer 1

The Kenda 175/80-13 size tire you asked about, part #AM10210, actually has a maximum speed rating of 81 mph. Traditionally pretty much all trailer tires had a max rating of 65 mph but recently that's changing. Tire manufacturers have been testing…

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Answer 2

Yes, it is possible to use radial tires instead of bias ply tires which came on your trailer. A radial tire flexes more than a bias ply and will give you better ground contact, traction, stability, and tread wear. A radial tire will also normally run…

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Answer 3

A 205/75D14 tire is going to be about 1-1/2 inches wider than a 175/80D14 tire and the overall diameter is about 1 inch larger. The important factors to consider when changing tire sizes to make sure you have enough clearance in your wheel well. This…

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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

Most trailer tires are only rated for 65 MPH so the issue you are having could easily be from heat build up due to the speed rating getting exceeded. Other possibility is that the tires aren't inflated to their max pressure. Trailer tires need to…

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Answer 6

I'll start with your last question first. If you call your Ford Dealer, and provide them with your VIN, they should be able to explain exactly how your vehicle is equipped. The brochure for your vehicle states that the HD tow package includes…

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Answer 7

The CE Smith Single Axle Trailer Fenders #CE19504-2 were never intended to be mounted in this type of fashion, but it looks like it could be doable but will require modification. I recommend considering install some Steel Tandem Fenders #HP44VR.…

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Answer 8

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 9

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 10

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 11

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 12

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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ST175/80R13 Trailer Tire Recommendation for a Boat Trailer to Replace 185/80R13

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