What is Recommended Distance Between Trailer Fender and Tires

Question

Question:

I am trying to figure out how much space is recommended between the tire and the fender on my boat trailer?

asked by: Karen K

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Expert Reply:

Generally speaking you will want to have 3 inches from the top of your tire to the fender of your trailer to accommodate for suspension travel. Having a little more wouldn't hurt, but I wouldn't recommend any less than 3 inches.

expert reply by: Jameson C

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Answer 1

For a 13 inch wheel and tire combo, the tire sizes would either be ST175/80-13 or ST185/80-13. The 175/80-13 measures 24.02 inches in diameter, while the 185/80-13 measures 24.65 inches in diameter. This is considerably larger than the 4.8-12 wheel…

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Answer 2

We recommend having about 4" of clearance height-wise to account for suspension movement and at least 2" width-wise between your tire and trailer fender or trailer frame like part #HP66VR that was referenced. Since you are building…

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Answer 3

The Timbren Axle-Less Trailer Suspension System - Straight Spindle Only - 3,500 lbs #ASR3500S05 has a deflection of 1-3/4 inches. I've attached a photo to assist. We recommend 4 inches above the tire in most cases for fender mounting to account…

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Answer 4

The recommended amount of tire clearance to allow for suspension travel on virtually any trailer is 3" from the top of the tire to the bottom of the fender or frame and 1" from the inside of the tire to the frame. If you need to raise the…

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Answer 5

Great question. As a general rule, when your trailer is loaded to it's full capacity, there should be a minimum clearance of 3 inches between the top of your tire and the underside of your fender.This should give you adequate clearance for…

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Answer 6

Most of the 2-5/16 inch hitch balls will use either a 1-inch diameter shank or 1-1/4 inch diameter shank. The nut size on a hitch ball with a 1-1/4 inch shank, like the Tow Ready 2-5/16 Inch Hitch Ball, part #19286, will use a 1-7/8 inch socket. A…

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Answer 7

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 8

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 9

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 10

You can add larger wheels and tires to a trailer as long as you have enough room for the larger size. The main clearance issues we find when putting larger tires and wheels on a trailer is from the top of the tire to the fender and from the inside…

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Answer 11

Your math is correct in your trailer weight load example. If a fully-loaded tandem axle trailer weighs 4000-lbs then each of the 4 tires will bear 1/4th of that load, or 1000-lbs. In this case a tire rated for 1300-lbs would provide a good safety…

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Answer 12

The three most common lug stud sizes for a trailer are 1/2"-20, 9/16"-18, and 5/8"-18. In order to make sure you get the correct lug nuts you need to measure the lug studs on the trailer now as we have no way to look this up for…

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What is Recommended Distance Between Trailer Fender and Tires

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