Upgrading Wheels and Tires On a 2021 Forest River Rockwood 1940LTD Travel Trailer

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Question:

Good morning, I just purchased a 2021 Rock Wood 1940 LTD with ST145R12 wheels rated around 60mph and I need to upgrade the tires and wheels. Would the Karrier ST175/80R13 Radial Trailer Tire fit the trailer and be the best choice? Thank you

asked by: Ron R

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Expert Reply:

I recommend just changing the tires to the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire # AM10130 on your 2021 Forest River Rockwood 1940LTD. This will allow you to maintain your same wheels and tire clearance that you currently have. They have a speed rating of 81 MPH (M) and a load rating D for 1,220lbs per tire.

If you would rather have the 13" aluminum wheel, the Aluminum Hi-Spec Series S5 Trailer Wheel - 13" x 5" Rim - 5 on 4-1/2 - Silver # AM22323HWT, would go nicely with the # AM10130 tire.

expert reply by: Bud M

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Answer 1

The brake controller that I would recommend for you is the Tekonsha Prodigy P3, #90195. This is one of the top brake controllers on the market and the LCD display makes setup and troubleshooting easier than any other brake controller. To install…

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Answer 2

The information on our trailer hitches come from the hitch manufacturers, and those ratings have nothing to do with the actual tow rating of the vehicle. The hitch manufacturers rate the hitch for what it is capable of, independent of the vehicle.…

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Answer 3

The Dexstar trailer wheel part #AM20149 that you referenced does have the 1,520 lb weight capacity that you are wanting. This does use the larger valve stem hole diameter but you can use the Americana Metal valve stems part #AM20906 which can…

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Answer 4

Aluminum trailer wheels like the Loadstar part #AM31245 that you referenced have steel sleeves where the lug nuts contact which means you do not need to use different lug nuts from what you have now that you were using with your steel wheels. There…

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Answer 5

Without knowing what size trailer tires you have on your trailer or any type of information as far as clearances of the trailer it would be very hard for me to help you pick out the best wheel and tire for your setup. Also, since I do not know what…

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Answer 6

A spacer or hub-centric ring is sometimes used on passenger vehicles, but our resident wheel and tire guru tells me that they aren't needed for use on trailers, due to the weight load a trailer wheel will be under. If you feel you need them,…

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Answer 7

The Karrier ST175/80R13 Radial Trailer Tire with 13" White Wheel - 5 on 4-1/2 - Load Range D #AM31985 has an individual capacity of 1,650 lbs at 70 psi so it would easily have enough capacity for your 2,600 lb trailer.

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Answer 8

I'm assuming you're speaking of the clearance between the top of the tire and the fender/wheel well. Four inches of clearance between the tire/fender and two inches clearance to the inside is what we typically want to see, but 3 inches to the…

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Answer 9

That's not a standard trailer tire size so I would have to recommend you go with a new wheel and tire since vehicle tires just aren't reinforced for use on a trailer and could cause handling issues as well as failure. The closest size we have…

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Answer 10

You didn't say how much more height you need or the height of your friend's dual adapter but you should compare it to the Malone #MPG544 which is 7-1/2 inches from the center of the top pin hole to the center of the bottom pin hole. This is…

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Answer 11

If your 2021 Rockwood Freedom has a GoPower plug already installed, then all you'll need is the Go Power Portable Solar System with Digital Solar Controller - 90 Watt Solar Panel #34282729 you were looking at. There won't be any additional…

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Answer 12

The difference between load ranges varies based on the tire size and brand. When comparing two tires of the same size and brand, a load range D tire will always have a greater weight capacity and psi rating than a load range C. However, when…

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Upgrading Wheels and Tires On a 2021 Forest River Rockwood 1940LTD Travel Trailer

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