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Trailer Tire Sizing
8 - 9 - 10 - 12 - Inch Trailer Tire Sizing
| Older Size | Tire Size | Rim Width | Load Range | Overall Diameter |
|---|---|---|---|---|
| - | 4.80/4.00-8 | 3-3/4 inch | B: 590 lbs at 60 psi C: 760 lbs at 90 psi | 16.1 inches |
| - | 5.70-8 | 3-3/4 inch | B: 715 lbs at 50 psi C: 910 lbs at 75 psi D: 1,075 lbs at 100 psi | 18.1 inches |
| 16.5 x 6.5 - 8 | 165/65-8 | 5-3/8 inch | C: 800 lbs at 70 psi | 16.5 inches |
| 18.5 x 8.5 - 8 | 215/60-8 | 7 inch | C: 935 lbs at 50 psi D: 1,165 lbs at 70 psi | 18.3 inches |
| - | 6.90/6.00-9 | 4-1/2 inch | C: 1298 lbs at 60 psi | 21.1 inches |
| - | 205/50-10 | 6 inch | B: 665 lbs at 30 psi | 18.3 inches |
| 20.5 x 8 - 10 | 205/65-10 | 6 inch | B: 910 lbs at 35 psi C: 1,100 lbs at 50 psi D: 1,330 lbs at 70 psi E: 1,650 lbs at 90 psi | 20.5 inches |
| - | 4.80-12 | 4 inch | B: 785 lbs at 60 psi C: 990 lbs at 90 psi | 20.5 inches |
| - | 5.30-12 | 4 inch | B: 840 lbs at 55 psi C: 1,045 lbs at 80 psi D: 1,250 lbs at 105 psi | 21.9 inches |
| - | 145/80-12 | 4 inch | D: 1,220 lbs at 65 psi E: 1,520 lbs at 80 psi | 21.3 inches |
13 - 14 - 15 - 16 - 17.5 Inch Trailer Tire Sizing
| Letter Size | Metric Size | Rim Width Range | Load Range | Overall Diameter |
|---|---|---|---|---|
A78-13 B78-13 | 175/80-13 | 4-1/2, 5, 5-1/2 | B: 1,100 lbs at 35 psi C: 1,360 lbs at 50 psi D: 1,610 lbs at 65 psi | 24.1 inches |
C78-13 D78-13 | 185/80-13 | 4-1/2, 5, 5-1/2 | C: 1,480 lbs at 50 psi D: 1,725 lbs at 65 psi | 24.4 inches |
F78-14 G78-14 | 205/75-14 | 5, 5-1/2, 6, 6-1/2 | B: 1,430 lbs at 35 psi C: 1,760 lbs at 50 psi D: 2,100 lbs at 65 psi | 26.3 inches |
H78-14 J78-14 | 215/75-14 | 5-1/2, 6, 6-1/2, 7 | C: 1,870 lbs at 50 psi | 26.7 inches |
| - | 8-14.5MH | 6 inch | E: 2,540 lbs at 85 psi G: 3,070 lbs at 116 psi | 27.7 inches |
F78-15 G78-15 | 205/75-15 | 5, 5-1/2, 6, 6-1/2 | B: 1,480 lbs at 35 psi C: 1,820 lbs at 50 psi D: 2,150 lbs at 65 psi | 27.1 inches |
H78-15 J78-15 | 225/75-15 | 5, 6, 6-1/2, 7 | C: 2,150 lbs at 50 psi D: 2,540 lbs at 65 psi E: 2,961 lbs at 90 psi | 28.4 inches |
| - | 7.00-15LT | 5, 5-1/2, 6 | E: 2,403 lbs at 70 psi | 29.4 inches |
| - | 235/80-16 | 6, 6-1/2, 7, 7-1/2 | D: 3,000 lbs at 65 psi E: 3,500 lbs at 90 psi | 30.9 inches |
| - | 235/85-16 | 6, 6-1/2, 7, 7-1/2 | E: 3,640 lbs at 95 psi F: 3,960 lbs at 110 psi | 31.6 inches |
| - | 7.50-16LT | 6 | D: 2,590 lbs at 60 psi E: 2,926 lbs at 75 psi F: 3,168 lbs at 85 psi | 31.8 inches |
| - | 215/75-17.5 | 6-3/4 inch | H (single): 4,805 lbs at 123 psi H (dual): 4,540 lbs at 123 psi | 30.2 inches |
Jamie
9/29/2023
I bought a used boat with a trailer. The guy recently replaced the tires but they look flat. When I check the PSI they are within normal range. Could this be a sign that the boat and trailer are too heavy for the tires? After I tow the boat for some distance, the tires are pretty hot.
Mike L.
9/29/2023
@Jamie It sounds like that very well might be the case. Check the ID plate on the trailer which will sometimes list the correct tire size. The GVWR should be listed there too. Get me that info, as well as the size of the tires currently on there and we'll get you a recommendation for replacements.
Jamie
10/2/2023
@MikeL couldn’t find anything on the trailer listing tire size. But the trailer is a venture boat trailer for 16-17’ boats. This is what is listed on the website. Tire Size: ST 175 / 80D 13 LRC 5H
Mike L.
10/3/2023
@Jamie A 175/80-13 load range C tire will have a capacity of 1360 lbs per tire. If the weight of the trailer + boat exceeds the combined weight capacity of the tires, you'll want to upgrade to a D load range which has a 1610 lb per tire capacity. We offer the load range D wire mounted on a galvanized rim with a 5-on 4-1/2 inch bolt pattern as # AM31994. We'd recommend getting that boat and trailer weighed, so you'll know how to proceed from here.
Blake
6/29/2023
I’ve recently bought a new boat and the tires on there are 155/80/13 but I can’t find those for a trailer on for a car but I wanted to know what is the other size I could use
Heather A.
7/17/2023
@Blake The tires on your new to you boat trailer are no longer made. The best replacement is going to be a ST175/80R13 like part # AM10199. These will be about 1 inch taller overall and 3/4 of an inch wider. You just want to make sure you have clearance to get a larger tire. The rule of thumb is that you want enough clearance for your trailer travel over potholes that normally requires 3-4 inches between the tire tread and fenders. You also need 1-2 inches between the sidewall and inside of the wheel well.
Art W.
6/25/2023
I have old tires on a trailer. The rims are 5 bolt at 4 3/4” (centre to centre). The tires size is 6.00 S 15. Can these still be bought?
Mike L.
7/15/2023
@ArtW A 205/75-15 is a pretty close modern equivalent. We offer it mounted on a 15 x 5 silver powder coated wheel with a 5 on 4-3/4 Inch bolt pattern as part #
J W.
6/8/2023
I just bought a kayak trailer and it has 12inch wheels, 4.80/4.00-8, c load range. How many miles should I expect to get on these? If it matters ( 2 kayaks about 300lbs)
Mike L.
6/9/2023
@JW The tire manufacturer might be able to shed some light on that for you, but to be perfectly honest, most trailer tires will 'age out' before the tread is worn enough to warrant replacement. After roughly 4-5 years, you'll want to replace the tires as after that point they'll start to dry rot. This is a bit different from automotive tires, because most trailer tires don't get tons of miles put on them. I'll link to an article that has much more info about trailer tires, which I hope you'll find helpful. The article will explain how to read the date code on the tire so you can determine its age.
Helpful Links
Gene
11/5/2022
I am a new boat owner,the tires on my boat trailer 175/80D but the tires look to high on the fenders or not to much room at the top between the tires and fender,the boat is used and trailer,just want to know how much space is safe
David B.
11/11/2022
In theory you could have 1mm and it be safe if there isn't any bumps. If the trailer is used I would just poke my head under the fender and look to see if the tire was actually making contact and rubbing on anything. If you don't see any evidence of that you will be good to go Gene. If you see skid marks on the fender or anything like that you would want to consider a lower profile tire. Honestly though since it is used and those tires are probably what has been used on it for some time I would say you are safe.
Anthony R.
8/7/2022
Help please, I need new tires for my boat trailer but I’m having a hard time finding the right size. They are dry rotted and worn. I can see it says 6.00-9 and C-214-1 they are tow master brand. What would the correct size be for them. What is a compatible tire and rim? It’s a 5 lug rim and tubeless tire. Thank you
David B.
8/8/2022
You will need something like this Kenda Loadstar K364 Trailer Tire - 6.90/6.00-9 - Load Range C # AM10040. I recommend getting a tape measure out and verify that what you have matches this # AM10040. You can find the tires specs listed on the product page. It will tell you the rims that it will fit, give you the section width and outer diameter when inflated plus the load range and other needed info.
Simon
7/15/2022
I am considering buying a motorcycle trailer but it's tires definitely need to be replaced. It is currently running 4.80 x 8. I am MOST concerned with finding tires that have a max speed closer to 120 km/hr or 75 mph. What can you recommend?
David B.
6/2/2022
Check out the linked faq page Smitty. I think it will help you make a choice about your tire selection. Once you have gone over it let me know and I can help you with sizes and all that jazz.
Helpful Links
Mike M.
6/1/2022
I have pair of ST205/75d15 load-C, I am looking to replace with heavier duty tire. Is the total tire diameter greater when you move up to load range D?
David B.
6/1/2022
A bigger load range doesn't always mean the tire size will be different for example these two tire/wheel combos have the same dimensions but one is load range C and the other is D. # AM32238B # WST44FR. I have linked to our webpage that has load range D tires/wheels that are in the ST205/75d15, ST225/75d15 and ST235/75d15category.
Dougm
5/29/2022
So my shorlandr trailer needs tires currently 155/80r13 are on there them are discontinued so what tire do I need in comparison to the other ones
David B.
5/30/2022
I would swap them all out for some 175/80R13. They will take up just over half an inch more room. Like .65 inches or so. Ill link you to the tire selection page and let you check them out.
Jeff R.
5/19/2022
I have a5x8 utility trailer that needs tires, 5.30-12, measured rims and they are 13. Is it ok to purchase same tires.
David B.
5/19/2022
If that is what your tires measure at then yes I suggest getting the same size. I have a link for you below that will take you to an expert answer page that will talk about this tire size. If you need anything else let me know, I'll be here to help.
Larry
5/17/2022
Have a single axle 5 lug Lance 1475 and would like to increase the tire size. What is the largest rim and tire I can move up to? Trailer has a lift kit so there is room.
David B.
5/17/2022
I need to find out the size of the bolt pattern. See the links below, they will help you measure your bolt pattern and let you know what type you have. Then we can go through and find out what type of wheel you can handle.
Anna
5/15/2022
I would like to know what size tires I would need on a gooseneck trailer to have it reach a loading dock.
David B.
5/16/2022
To be honest you would probably need to raise the entire trailer. The average load dock is about 4 feet tall. I don't know of any reasonable or safe way to get a goose neck that high. You might be able to lift the trailer a few inches and get some slightly larger tires(I'll need to know what wheel size you have). That would get you some room but I doubt we will be able to lift a trailer that high. Can you tell me the year/make/model of the trailer? I'll find out what all can be done and see how much height can be added.
Lance D.
5/6/2022
I've got an '87 F150 4x4, that I made into a trailer years ago, and it's time for new tires and wheels. Do y'all have any wheels and tires (15"), that will fit a 5x5 bolt pattern?
David B.
5/9/2022
Yeah, let me link you to one of our pages with some tires/wheels that will fit a 5 on 5 bolt pattern. Let me know if you need any more help.
Helpful Links
Keith
4/6/2022
Hi. I'm replacing a pair of 4.80/4.00-8 Bs on my trailer for my 18' catamaran. Gross wt. is about 700lbs. Would I gain anything by going to 12" rims or even a larger tire? Right now I travel locally, but eventually I'd like to take it on long trips on the California freeways and up into the mountains. I'd like to be able to do more than 65 mph. Thanks.
David B.
4/13/2022
As long as you find a tire that fits your current wheel, a larger radial tire is going to give you more load range(trailer max weight capacity will not be changed) and handle better. You can get more speed rating too. If you want to upgrade wheels make sure you get a set that will fit your lugs and have enough clearance to not rub on the trailer frame once the tire is installed.
Helpful Links
Randall
2/28/2022
I have 5x8 carry on trailer with 175/80R13 tires, I would like to put bigger tires on for more ground clearance. Rims are 5 x 4&1/2. Could a 205/75R 14 possibly fit?
Les D.
3/1/2022
Compared to your existing 175/80-13 tires, the 205/75-14 tires are 2.1 inches taller and 1.2 inches wider. You need to have 3 inches clearance in all directions. Check your trailer and see if new tires will fit.
If you decide to go the 14 inch route, I have placed a link below to 14 inch wheels with 5on 4-/12 lug patterns
Cindy F.
2/10/2022
I have a 1977 Idle Time camper that needs new tires and rims but I have no idea what size to purchase. There are currently four different tires and rims on it and the metal plate that tells the size is too corroded to read. Please help!!!
Les D.
2/11/2022
@CindyF if you have 4 different wheels and 4 different tires, I would look at the combo that is largest but still fits. I would want about 4 inches clearance from the top of the tire to the fender, and at least 3 inches from all other sides, including space between tires on multi-axle trailers. When you find the one that fits, send me the sizing embossed on the side of the tire.
Next is there a tag showing the GVWR for the trailer? If not, is there a tag on the axle for it's maximum rating? We need to determine the maximum weight the trailer is designed to carry.
I am betting this older trailer has old tires as well. I would not run a trailer tire past six years. You are going to want four matching tires and wheels. Do you have a preference?
Next is there a tag showing the GVWR for the trailer? If not, is there a tag on the axle for it's maximum rating?
I am betting this older trailer has old tires as well. I would not run a trailer tire past six years. You are going to want four matching tires and wheels. Do you have a preference?
Craig M.
2/9/2022
I have a 5x8 utility trailer that has 12” tires on it. What’s the largest tire in can put on it to increase the load capacity?
Les D.
2/9/2022
#CraigM I would like to help with this question. Sometimes when someone says they have a 12 inch tire, they really mean that the steel wheel is 12 inches in diameter, but the rubber tire is much larger in diameter.
To help me find a solution for you let me know what size rubber tire that you have. This information is embossed on the sides of your tires. For instance it might show 145/80-12.
Then also, let me know how much space you have between the tire and the wheel wells. This will let me figure out if a larger tire can be installed.
Finally, would you prefer to purchase a tire only, or a tire already mounted on a wheel?
Craig M.
2/11/2022
@LesD 5.3/12 and I have roughly 4” of clearance in the wheel well. I would prefer the tire and wheel assembly
Les D.
2/11/2022
@CraigM you will also need to know the wheel bolt pattern. I have attached a document that will show you how to measure for that. It will likely be 4 on 4, or 5 on 4-1/2.
If you have 4 on 4 you could use the Kenda #AM30790 which have 1045 pounds of capacity per tire. So that is 2090 pounds for a single axle trailer, or 4180 pounds for a dual axle trailer.
If you have 5 on 4-1/2 inch bolt pattern you can use the Kenda # AM30861 tires with galvanized wheels with 1250 pounds capacity per tire, or 2500 pounds on a single axle or 5000 pounds for a dual axle trailer.
You will need 4 inches clearance from the top of the tire to the fender, and 3 inches clearance behind, front to back, and tire to tire on a multi-axle trailer. With that in mind we can't go to a larger diameter tire.
I have placed links to these products below.
Helpful Links
Jeff S.
1/16/2022
I have a Shoreland’r flatbed trailer with 20.5 x 8.0 10 with 5, 4.5 lug nut pattern. Rims and tires have been neglected for years (yard sale purchase). Will travel OTR (over the road) what recommendations for this type of use, thanks.
Les D.
1/17/2022
For a wheel with a 5-ON-4.5 inch lug pattern, and a 10 inch diameter wheel, the closest thing we offer is the Americana # AM20046 steel wheel with a 10 inch diameter and 6 inch width. Not a perfect match, you would need clearance behind the wheel.
Diane
11/28/2021
I’m buying a 1966 16 foot Shasta camper from friends and it needs new tires. The size looks like j75-15 and they’re Goodyear tires, but they say it might be better to get narrower ones to make it easier to get out of wheel wells. What tire size do you suggest?
Les D.
11/29/2021
I recommend that you have 3 to 4 inches from the top of the tire to the fender, and 3 to 4 inches from the back of the tire to the trailer wall.
The J75-15 is not a recognized as a tire size. If you can provide more tire information I can give you some options. If you want tires and wheels we will need to know your lug nut pattern. I have attached an article on measuring for that.
Helpful Links
Mj C.
11/17/2021
The 4.5" rims that I bought from y'all for my old boat trailer don't (but just only) fit my newer trailer. Was hoping to just swap them over...oh well. Perchance, does anybody know what a 5 lug wheel with about a 119 mm lug-to-lug-after-next measurement translates to? Measurement is rough bc my caliper is too small to make the span, but for sure 4.5" lug pattern is too small. Any help appreciated! Tires on new (to me) trailer are 205/75 14, it's a Venture, if that helps. Thanks in advance.
Les D.
11/23/2021
@MJC To select wheels with the correct bolt pattern, please see the attached document to shows how to measure, and has a template.
Les D.
10/14/2021
@Luther we need a little more information to make a good recommendation. First, what is the lug pattern for your trailer wheel? I have attached a document that will help you determine this. Second, we will need to know the GVWR for your trailer. This is the total possible weight of the trailer fully loaded. Finally, lets find out the height of the tire, which is located on your current tires.
Helpful Links
Mike
10/5/2021
we were gifted a 1977 coleman pop-up camper. the tires on it are 16.5x6.5-8. i am looking for tires (3) and hoping to get them on wheels already but i can get them mounted if needed. the trailer weighs about 900lbs and i dont know if lawn mower tires are the answer
Les D.
10/14/2021
@Mike You will need to know your lug bolt pattern. I have attached a link that will show you how to measure for this.
If you have a 5-On-4.5" pattern, you will want the Kenda # AM3H240 165/65-8 which is more than enough for the weight of your trailer.
If you have a 4-On-4" pattern, you will want the Kenda # AM3H200, also with load range C
Helpful Links
Colum O.
9/30/2021
I have a 1980 Skylark double axle travel trailer. Having a hard time finding 215 75r15s is there an altrnative i can use. I live in Northern BC.
Les D.
10/14/2021
@ ColumO We do not have 215/75-15 tires, however we carry 225/75-15's that are only slighly wider. I have included a link for those tires. Be sure to select a tire that has a load rating suitable for your travel trailer.
Brad C.
9/23/2021
I have 205/75r15 C rated tires on my 126 cargo trailer. The bolt pattern is 5 X 4.75. I want to get 225 tires not because I drive fast, I drive long distances on this single axle. I want to keep the tires cool. Will 225 tires fit on my rims or do they make rims for a 5 X 4.75 bolt pattern?
Les D.
10/14/2021
@BradC I do not have any tires, or wheels, or pre-mounted tires on wheels, that are 5 on 4.75 lug pattern, or 225. I am sorry that I could not be more helpful. This does not seem to be a common combination.
Tiffany
9/22/2021
Hello. I have a new single axle shoreland’r boat trailer with Eco Trail tires (215/ 75 D14) Load C with tire weight rating 1870lbs. Bolt configuration- 5 lug on 4.5” galvanized spoke 14” wheels. Rim size- 14” x 5.5”. What smaller tires and wheels would you recommend that have the safe weight capacity for taking our boat? We would like it 1 1/2-2 inches shorter if possible to get it in the garage without letting air out of the tires. The tires now are 26 inch radius currently. We also don’t want to have to worry about the bearings getting too hot. Any advice is appreciated. Thank you.
Les D.
10/14/2021
@Tiffany You report that your current tires are 215/75-14 in metric size, which converts to 27" X 8.46" tire measurement. You also report that your current tire has a 26" radius, and I think you mean 26" diameter. Never the less, that is an inch shorter than what my calculation reveals. If you are currently at 26" in height/diameter, then you are asking for a 24.5" height/diameter tire. Is that right?
Could you please double check your tire diameter for me and I will work on this again.
Doug B.
9/17/2021
My VIN tag says "Tire Size: 8.00 x 10 E". This is on a single axle boat trailer. What replacement tire with wheel should I be looking at?
Les D.
10/14/2021
We need a little more information to make a good selection for you. First, what bolt pattern do your current wheels have? I have included some links on measuring the bolt pattern. Second, what is the GVWR of your trailer, or to say it differently, what is the maximum weight of the trailer plus a fully loaded boat? There should be a tag on your trailer with this rating.
Rick
8/17/2021
I have trailer with tandem axle. It has 6 lug pattern but the tire and rim size is 14.5. Want to swap out to 15”. Wondering what size keeps the height about the same?
Victoria B.
8/24/2021
If your current tires are 8-14.5MH, then they should be somewhere around 27.7 inches in overall diameter. If you want to size up to a 15 inch wheel, a 205/75-15 will be slightly smaller at 27.1 inches while going up to a 225/75-15 will be slightly larger at 28.4 inches.
Victoria B.
8/17/2021
The closest size tire we have to your 195/75-14 is a tire size 205/75-14. These tires will be a bit wider than your existing tires, by about 0.39 inches (just a little bit bigger than 3/8 inch). They will also be about 3/4 inch taller than your existing tires. It is a good idea to check your trailer side clearance and fender clearance - if applicable - to make sure you have room for this slightly larger tire. I have linked all of our tires in this size. For the tires already mounted to wheels that have 5 lugs, we have them available in a 5 on 4-1/2 bolt pattern.
Chris
7/20/2021
I have tent trailer with the std 5.3R12 load range C tires on a std 4 bolt pattern rim and want to go to a wider tire or even a little taller, What are my options?
Jon G.
7/20/2021
You could possibly update to a 175/80-13 size tire (see linked selection), but you'll need to be careful to keep 4" of vertical clearance and at least 2" from the trailer frame to the tire sidewall. This new tire size has a section width of 6.6" and an overall diameter of 24".
Bob T.
7/13/2021
Hello I’m currently running the Samson Tracker plus XL 12 16.5 12 ply load range F On my Vermeer chipper it weighs 7000 pounds. Would like to get away from flotation Tires (single axle) The LT 235/85/R16 are getting a bit tall for the fender space width is fine. What could I go to to get the Weight capacity and a bit lower than the 235/85/R16 ? Thanks again
Jon G.
7/13/2021
Any of the 235/85R16 size tires will work for your application. Even the smaller load range E tires have enough capacity for a 7K axle. Attached is a link to our selection for you to filter through.
Helpful Links
Lonnie B.
7/13/2021
Would a 15 inch tire/rim fit in a wheelwell of a 5x10 trailer with 5.30-12 tire/rim? Is there enough room in the wheelwell area to work? Thx
Jon G.
7/13/2021
You would need to figure in the width and diameter of the new tire/wheel and compare that to what kind of room you currently have. You need 4" of height clearance and at least 2" of clearance from your sidewall to the trailer frame.
Jon G.
7/8/2021
@TroyP From what I'm seeing it looks like your 8.5-14 tire has about a 28.5" overall diameter. The closest thing we have to that size is something like the 215/75R14 Provider # TTWTRTM2157514D. This has a section width of 8.5", an overall diameter of 27", and a load range D which is 2,200 lbs at 65 psi.
Brandon
6/27/2021
I just got done welding on a Dexter 5, 200lb axle. To a 8x6 utility trailer built by another farmer. Its a 6 lug what size tire /rim combo would be recommended?
Brandon
6/28/2021
@JonG just clarifying, its 5.2klbs not a 2klbs axle.
2nd the stud spacing is 5.5
Also another note. I only have a 2.5 inches between axle and frame. That normal for
This type axle/suspension? The axle rides on top of the suspension. The suspension is rated for 6klbs
Jon G.
6/28/2021
@Brandon In that case the Kenda I mentioned earlier would work just fine. If you only have 2.5" from the axle beam to your trailer frame that is a cause for concern. We recommend having at least 4" to account for any vertical travel you'll encounter on the road. You can either install longer hangers or you can use an Over-Under Conversion Kit like part # K71-385-00 to increase that distance.
Eric S.
6/25/2021
I have a 1997 Salem 21' bumper pull travel trailer. I won't have access to it for at least a couple of weeks, but I want to go ahead and order tires so I can get them on and immediately get out. Any idea what the best tires (and tire size) I'd need to order for this trailer?
Jon G.
6/25/2021
Unless you know what size tire you currently have it would just be a complete guessing game on my part and I don't think either of us wants that. If you can figure out what size your tires are I'd be more than happy to help out!
Johnny
6/24/2021
I am wondering if my 2018 Salem Cruise lite 263BHXL which has 14 inch tires on it has 5 x 4.5 in. rims. I want to upgrade to 15 inch with higher load rating.
Jon G.
6/24/2021
We recommend having at least 4" of clearance to the fender for suspension travel and 2" of clearance to the trailer frame. You might be able to use larger tires and still maintain this type of clearance but I'd need to know what kind of clearance you currently have first.
Angela B.
6/14/2021
Hi ! New camper owner here ... I have a 1971 Forrester trailer that is 12×7'. Single axel. It currently has ST 185/80 D13 tires. Load class C. The rims are 5 bolt pattern I believe they are 14". I would like to get 2 new tires on rims that I am able to add hubcaps to. What do you suggest? Am I able to go a little bigger or should I stick with this size ? What brand ? Please help I don't want to order the wrong thing.
Jon G.
6/22/2021
As long as the tires are rated properly for your trailer then I don't see any reason to go larger. I would go with the White # AM20212 or Black # AM20214 wheel which will fit with the Baby Moon Hubcap # AM90086. You can either keep your current tires or you can use something a little more heavy duty like the Kenda Karrier # AM10208 which is a load range D.
Marioz
5/29/2021
Looking at your 'axle-less' wheel mounts. I wish to build an off-road flatbed trailer for pulling with an Arctic Cat Trail UTV. Something in a 1200# capacity, and for 50" trails. I would use leftover 25x8x12, or 25x10x12 UTV tires and wheels. The wheels have a -5"/+3 offset, and are 7" and 8" wide front and rear with 4x115mm bolt pattern. Do you have axle-less mounts for such wheels", and is the 1200# rating given a 600# per mount rating?
Jon G.
6/1/2021
We don't have any hubs that will work with that bolt pattern but if you're able to find hubs that use that bolt pattern and use the L68149 inner and L44649 outer bearings (as well as a grease seal with a 1.179" inner diameter) then you could definitely use one of the axle-less Timbren options like # ASR1THDS02. I guess you can think of it as each one being rated for 1100 lbs but they are designed to be used together for a set capacity of 2,200 lbs.
Marioz
6/1/2021
@JonG
Thanks for the comeback, Jon. I can get spacers for adapting 4x4, & 4x4.5 hubs to 4x115mm wheels as well. In which case I could still use your axles. I want the wheels to be beneath the flatbed as opposed to outside with fenders, so I would need to know the maximum total length of travel from rest to complete compression for said axle, in order to mount the axles low enough so as not to bottom out on the underside of the trailer. The 5" offset of the wheel would need to clear the distance from the hub face inward to the axle-less mount. (6")
Jon G.
6/1/2021
@MarioZ If you check out the product page for the Timbrens you can see a lot of dimensions that I believe you will find helpful for your application. The resting distance from the center of the spindle to the trailer frame is 2-5/8" and then the suspension has a deflection of 2-1/8".
13 S.
5/22/2021
I’m looking to buy a 1973 lark 13ft camper but I gotta replace the tires and having a really hard time figuring out which tires fit it... anybody point me in the right direction? Would be much appreciated!
Tim G.
5/14/2021
I have a 2007 Jayco Jayflight 27.5 RKS 30 ft 5th wheel. I blew a tire and took it to Goodyear to get it replaced. I did not notice at first, but they gave me a ST205/75R15 D rated tire max pressure 65 PSI instead of the ST205/74R15 that says max pressure is 50 PSI tire called out on the tire and sticker. I went back, and they told me that I could run the D rated tire at 15 PSI lower to 50 PSI. Plus i now have different tires on the RV, I have seen the sideloads when turning my RV, and I do not feel that this is correct. I feel max pressure is always required on a RV.
Jon G.
5/17/2021
The hard and fast rule used to be that you needed to fill the tires up to the psi rating on the sidewalls but in the recent past that has changed as trailer tire manufacturers started doing more testing of the tires at different psi ratings. It is always best to be using the same tire on every axle of your 5th wheel and to have them all at the same psi rating (being sure that it's sufficient for the weight of your 5th wheel).
Tim G.
5/17/2021
I talked to Jayco today, and they said the tires need to match the sticker. In some states I could get pulled over and receive a ticket for not having matching tires to the sticker. They also recommended not to change the rating on the tires. My guess it has to do with weight handling, as in someone may overload the RV by looking at the rating of the tires.
Jon G.
5/18/2021
@TimG Yeah this is something that trailer and tire manufacturers have agreed to disagree on for a while now.
Donald A.
4/28/2021
I see you said the following to somebody and my question will be at the end. Etrailer Expert Reply from Kef G. 3/23/2021 I can't say I've heard of this problem with the Castle Rock tires. We do have plenty of 185/80-13 tires here that I've linked to below. I wouldn't recommend going a size up since there may be problems with clearance. As for the comparison between ST and LT tires, I recommend sticking with ST on a trailer since they are built stronger to handle the heavier loads. All right I have a 5-ft by 12-ft trailer that I bought a used and I have no clue what the original tires were on it. Somebody put some car tires on it and I'm guessing from a junkyard. Is there a way you can tell me what the original tire size would be on it? All I know for certain is the bolt pattern is four and a half inches across. My reason for this question is simple, I once had a pallet of landscape pavers put on in the trailer and the fender set on the tires. Now last Saturday I had a blowout with one scoop of sand. I'm trying to figure out what to do. As for car tires not being able to handle the weight, then how do they handle the weight of an engine or the body of a car or anything else? It just doesn't make any sense to me.
Jon G.
4/29/2021
Great question! So passenger car tires have more flex in the sidewall which allows them to handle vehicle maneuvers in a more comfortable fashion. Since trailers are designed for hauling their tires have a stiffer sidewall that helps hold the load and is able to withstand the movement of the suspension better. We recommend having at least 4" of clearance to the fender for suspension travel and 2" of clearance to the trailer frame. If you can tell me what your current tire size is and what the weight capacity is for your trailer I can see if we have something that would work. Aside from that I don't really have a way to know what initially came on your trailer.
Tim
3/21/2021
I'm looking for smaller tires/wheel combinations for a flatbed trailer that can carry great weight to build a tiny house - 2 or 3 axle - preferred tire size would be 16" or less and the 3 axles with 6 or twelve wheels would need to carry approx. 30,000 lbs Thoughts?
Kef G.
3/23/2021
That sounds like quite an undertaking! You'll want to make sure your axles have the capacity to handle the weight you're planning to load.
As for the size of tire and wheel, you'll need to find ones that match not only the weight capacity requirement you'll have, but also the bolt pattern of your hubs. You might be able to find something like that under 16", but really the above requirements will need to be the first priority.
Mike C.
3/20/2021
I have ST 185/80/13 tires on my 12 ft epro 12rk . They are the castle rock tires everyone complains about being the infamous " china bomb " tires , known for blowing out ! I thought I'd just find some American made ST tires and 1 size up to would be great ( not sure what size that would be ) ? Then while searching on youtube I start seeing videos of certified airstream mechanics and others saying that most all ST tires end up getting to hot and failing and to use LT tires or car tires cause they'll last longer. So now I'm confused ! I've dragged a utility trailer for near 30 years for work , so I'm not a novice pulling trailers , it's just with this trailer bomb image in my mind , I thought I'd try to get some clarification ! Thanks in advance for your time, experience and advice !
Kef G.
3/23/2021
I can't say I've heard of this problem with the Castle Rock tires. We do have plenty of 185/80-13 tires here that I've linked to below.
I wouldn't recommend going a size up since there may be problems with clearance.
As for the comparison between ST and LT tires, I recommend sticking with ST on a trailer since they are built stronger to handle the heavier loads.
Helpful Links
James C.
7/8/2021
@MikeC The issue isn't between being an ST tire or an LT/Passenger car tire. It is the tire construction, either Bias ply or Radial. Bias ply tires are stiffer and can handle more weight, but that also means more friction, thus more heat build up. Radials on the other hand have more flexibility. So they build less heat, but being less stiff means less weight capacity and more trailer sway. ST tires come in both bias ply and radial. LT/Passenger tires mostly only come in radial. Bias ply or radial? Depends on the conditions the tire will be put in. For many people radials are the best option, especially for those who mostly tow on the highway. That is where heat build up is most likely. When looking at tires, metric sizes only, the size even has a identifier indicating bias ply or radial. ST185/80D13 would indicate the tire is bias ply. Where ST185/80R13 would indicate radial. The D indicates bias ply and the R indicates radial. For other tires you would have to look at the description to find out if it is bias ply and radial.
Philip A.
3/16/2021
Hello I'm new to have a boat I have a 1991 Smoker craft trailer I'm trying to find info on the tire size u need so I can replace the old ones the previous own had on the trailer
Jon G.
3/17/2021
To replace the tires you will want to check out the sidewall of your current tires. The size will be listed on there and should look similar to the numbers in the "tire size" column. You can see a good, clear picture of the tire size on the sidewall in the attached article.
Helpful Links
Joe
3/6/2021
I have 155/80/13 on my boat trailer and would like to stay that size or a little smaller but am really needing to go to a heavier load capacity. What should I do?
Jon G.
3/9/2021
It sounds like you're currently using passenger car tires for your boat trailer. The closest size we have to that with trailer tires is the size 175/80-13 but this is about 1-1/4" larger in diameter so you're going to add about 5/8" of height to your tires. Here is a link to our selection for you to check out.
Helpful Links
Joe
3/12/2021
@JonG if I wanted to go a little smaller than the 155 80 13 what would I have to go down to? I'm not against charging wheels
Jon G.
3/12/2021
@Joe The next size smaller that would work is 145/80-12. Here is a link to our selection that has the different load ratings, tire/wheel combos, and bolt patterns that you can filter through. If you can let me know what bolt pattern you currently have and how much the axle on your trailer is rated for I'd be more than happy to make a recommendation for you!
Kyle B.
2/27/2021
My trailer has 225/75/r15. My spare is a 235/75r15 am I able to use this spare or will it cause problems on the road
Jon G.
3/1/2021
Difference in tire sizes will cause problems. Even load range differences can have uneven wear on the tires. The best practice is to have the exact same tire for all of your tires. Technically you can use the slightly larger size but I'd only do that if you only need to travel a few miles to a trailer or tire repair shop.
Wallace P.
2/26/2021
My boat trailer tire size is 185-75-14 is this size still being manufactored ?
Jon G.
3/1/2021
Sounds like you have vehicle tires on your boat trailer. You should be able to use the trailer tire size 205/75-14 instead. This new tire size will be about 1/2" taller and almost 1" wider so we will want to make sure that we still have a 2" clearance gap between our tire sidewall and the trailer frame as well as 4" of clearance from the tire tread to our wheel well.
Marvin M.
2/26/2021
Hi I got 205/75/r15 tires on my trailer 5x8’ I’m trying to get smaller wheel/tires so my trailer can fit in my garage because of my HOA. What size can get? The trailer is 3” taller than my garage.
Jon G.
2/26/2021
What is the weight rating for the axle on your trailer? You could go with something in the 12" wheel range but then we are talking about a noticeable difference in weight capacity for those tires plus we have to make sure the bolt pattern matches.
Marvin M.
2/27/2021
@JonG axle is 2990lbs
It says shouldn’t exceed 1970lbs. I use this mostly for traveling and doesn’t exceed 500lbs of weight total. It has 5lugs
Marvin M.
3/1/2021
@JonG Hi the axle is gawr 2990 each with 5 lugs. Looking for 900-1000 lbs max of load. I don’t haul much.
Jon G.
3/1/2021
@MarvinM Thank you for the information! Your current tire has about a 28-1/2" diameter so to reduce the height of your trailer by 3" we need a tire that is 6" smaller in diameter (since that will be a 3" difference at the top and at the bottom). Attached is a link to our selection of tire/wheel combos that should work great for your application as they have a load rating D (1,220 lbs at 65 psi) and a 5 on 4-1/2" bolt pattern. Just make sure you don't exceed your trailer weighing 1,970 lbs and you should be just fine.
Joseph L.
2/14/2021
I have a 3100 pound boat and trailer what size tire is recommended i have 16 on it now and my pontoon won't float off trailer
Jon G.
2/16/2021
What is your current tire size (the entire number on the sidewall) and what is your bolt pattern? We recommend making sure that you have at least 4" of clearance to the top of your wheel well and then at least 2" of clearance to your trailer frame.
Rosalee
2/5/2021
Tired on utility trailer are 215-70 R15, can I use a 235-75-R15 for a spare tire? Thanks
Jon G.
2/5/2021
Potentially. It's best to make sure that you have 4" of tire to fender clearance and then at least 2" of clearance from your tire sidewall to your trailer frame. A 235/70R15 size tire has an overall diameter of 28.9" and a section width of 9.3" so you'll want to compare that to the space that you have available.
Bruce
1/16/2021
I'm looking to buy a 16 by 8 cargo trailer we'd like to raise it for off road camping what is the best way to raise 4 clearance bigger Wheels, reverse axle mounts or both
Jon G.
1/19/2021
Using an over-under conversion kit like part # K71-384-00 or # K71-385-00 would be the most cost-effective option and would raise your trailer the height of your axle plus the height of your leaf spring stack. Larger tires could help but you would have to go with much larger tires to see any significant change in height.
With either of the options above though you will still have the axle so far above the ground. To get the most overall clearance you'll want to switch to a Timbren Axle-Less System (see attached). Since these don't use a crossmember you essentially have the whole underside of your trailer clear.
Helpful Links
Bobby S.
1/8/2021
I'm building a 34 ft trailer I'm going to buy 3 4k-7k axles to put on it. How do I determine what size tires to put on it?
Jon G.
1/11/2021
For a trailer build I would first look at the weight ratings for tires. Weight ratings are for each individual tire so for a 7K axle you would want a tire that has a weight rating of at least 3,500 lbs so that you can be confident your tires aren't the least rated component. Once you've got the weight rating in mind you can then look at the overall diameter and the width of the tires to make sure that they will have 4" of height clearance to any kind of fender (to account for suspension travel) and then at least 2" of clearance to your trailer frame.
Mary D.
12/29/2020
Question: I just inherited a 1993 Lance 5th wheel trailer and need to replace the tires do you know what size I will need?
Jon G.
12/29/2020
We do not. You might be able to find that in the owner's manual or you can look at the tire size on the current tires. It will be located on the sidewall and will look similar to this - 225/75-15.
Willie
12/12/2020
I need new tires for a small 15 ft 1994 Eddy trailer. Please advise as To what is required and best places to purchase. And thank you!
Jon G.
12/14/2020
What size tire will you be replacing? We recommend trying to stick with the same size so that you don't run into any clearance issues. We sell both tires and wheels here at etrailer so I'm kind of biased but if we have the size you're needing then I would say that we are the best place to purchase from!
Helpful Links
Greg
12/9/2020
I have A 8400 lb 35’ travel trailer. It has trailer king 225 75ST is that A good replacement
Jon G.
12/10/2020
Trailer King tires are more of a middle-of-the-road type of tire when it comes to quality. They will get the job done but I wouldn't say they are anything special. If you're looking for something better, then I recommend the Goodyear Endurance # 724857519 which is also available on a white wheel with a 6 on 5-1/2" bolt pattern as part # 724857519A.
Diego S.
12/1/2020
Hi I own a 3x4 trailer with 4.80-8 tires, and i need new tires is it ok/safe for me to upsize them to 12 inch tires?
Jon G.
12/1/2020
As long as you have enough clearance for them you can upgrade to a larger tire size. We recommend having at least 2" of space from your tire sidewall to the trailer frame and then at least 4" between the tire tread and a fender to account for suspension travel.
David S.
11/30/2020
I have a 5000 lbs travel trailer that has ST225/75 15D tires. The chart says this tire this tire is rated at 2540 lbs @ 65 PSI. This trailer has tandem axles so would the load capacity be 2540 X 4 =10160 lbs or 2540 X 2 = 5080 lbs
Jon G.
11/30/2020
The tires add to each other so for your 4 tires the load capacity will be 10,160 lbs. Please note that you are limited by your least rated component so if your axles and/or trailer frame is rated for less then that, you'll want to stick with the lowest rating.
Sara
11/11/2020
I have a 04 Dali bumper pull Steel stock Horse trailer I bought used. It came with 225 75R15 on it but now need replacement. Is this a good tire to continue to use on a horse trailer that I use weekly for shows up to 2hrs hauling 2, 1000pound horses. Thank you in advance.
Jon G.
11/11/2020
It kind of depends on how much the trailer and horses weigh together, but something like the Goodyear Endurance # 724857519A rated for 2,830 lbs at 80 psi should be able to. Just remember that the weight rating is increased for each tire used so for a 1 axle trailer using this tire they could handle up to 5,660 lbs combined.
Jon G.
11/19/2020
@Sara In that case you're looking at 11,320 lbs for 4 of them combined. Just be sure that you don't exceed the lowest rated component in your setup, whether it's your axles, tires, or trailer frame (GVWR) and you'll be just fine.
Austin
11/2/2020
I have trailer tires that have 7-14.5 on the sidewall. I am looking to get a spare for the trailer. What size range of tires should work as a spare?
Jon G.
11/3/2020
You definitely want to go with a 7-14.5 size tire because any other size will cause your tires to show inconsistent wear and could cause other problems like to your suspension. We don't have any 7-14.5 tires (and they aren't as common anymore) so if you can't find this tire the safest thing to do is to swap out all of your tires so they all match.
Beverleigh R.
11/16/2020
@JonG I am currently dealing with the same exact problem and tire size. Do you have any recommendations on a rim and tire that would be safe and compatible with a 7-14.5 mobile home tire?
Jon G.
11/17/2020
@BeverleighR While we don't have any 7-14.5 size tires we do have some 14.5" rims. Part # AM20308 is 6" wide and has a 6 on 5-1/2" bolt pattern while part # AM20320 is 7" wide and has an 8 on 6-1/2" bolt pattern. You'll basically want to get the right bolt pattern and then check out the specs on that product page to make sure that it matches your application.
Jon
10/20/2020
I have a 1973 Holiday Rambler trailer. Looks like original tires! They have 8.55-15S on the side wall. What replacement do you recommend? Thank you.
Charlie
10/16/2020
I have trailer tires need replacing they are FIRESTONE Deluxe Champion G78-14ST. Can you tell me the equivalent to that tire size in a radial . Thanks
Jon G.
10/16/2020
The tire size you're looking for is 205/75-14. I highly recommend the Goodyear Endurance # 724864519 because it is one of the best performing tires that we have to offer. Just be sure that the weight rating of 2,040 lbs at 65 psi works out for your application!
Solomon
10/14/2020
We have lowbeds. The tires fitted on the tractor are 12*24 and the tires on the trailer are 12*20. Will it make any problem on the tractor, trailer or on the load if it couple these two?
Jon G.
10/14/2020
I believe what you're asking is if the tires on your tractor and the trailer have to be the same? The answer to that would be no. Just make sure that you aren't overloading your tractor or trailer, and that you're able to tow your trailer with it being level and you're good to go!
Brad
10/11/2020
1969 Barth trailer 22ft long double axle had 4, 7.0x15 tires (28.3”tall). I have some 18” truck wheels that will fit. What size tire is best? 225/60/18 LT tire & (28.6” tall)
Jon G.
10/12/2020
You definitely want to go with tires that have similar dimensions. Your 7.00-15 should actually have a 7.7" section width and an outer diameter of 29.3" like what we have with the Kenda tire # AM10412 or # AM10414. We don't recommend using truck tires for trailers because they have a different construction. The tires I mentioned above are labeled as "light truck" but since the LT is at the end of the size it means that they were designed for trailers.
Jon
10/12/2020
@JonG I now have 18” wheels. So I should get 225 65 18 to match the 29.3 height? This trailer will only be used for fun locally on our property. Rarely driven at most 1-2 hours away a few times a year.
Jon G.
10/12/2020
We just say to make sure you have at least 4" of clearance between the top of the tire and your fender to account for suspension travel and then at least 2" from the trailer frame to the sidewall of your tire. Trying to match you current tire dimensions is a good way to go if you know that your current tires have the proper amount of clearances.
Mari J.
10/7/2020
Hello, I have a 1958 siesta trailer that needs tires and I don't know what size to get. The tires that are on it is very old and the numbers appear to be 7:35-15 Can you help?
Jon G.
10/8/2020
The correct replacement for your 7.35-15 size tire is a 205/70-15. The closest we have to this is 205/75-15 which will have the same width but a little less than 1" larger diameter. Here is a link to our selection of these tires as well as the various tire/wheel combos in this size.
Helpful Links
Nick
10/1/2020
Hi I have a trailer wheel 5.5 stud with a tyre size of 5.20 - 13. What normal size tyre can I put on the rim
Jon G.
10/2/2020
It looks like your 5.20-13 tire has an overall diameter of 23.10 inches and a section width of 6 inches. The closest thing that we have is a 175/80-13 size tire which will have an overall diameter of 24.10 inches and a section width of 7 inches. As long as this allows you to have about 4 inches of clearance from the top of the tire to your fender, and at least 2 inches of clearance from the sidewall of the tire to your trailer frame you will be good to go. Attached is a link to our selection of tires (and some wheels) in this size. None of the wheels have a 5 on 5 inch bolt pattern so you'll have to supply that part on your end.
Helpful Links
John
9/28/2020
I have a 5 x 10 homemade trailer w H 78 15 tires on it will a 8 ply st 225 75 15 work ?
Jon G.
9/28/2020
Yes, 225/75-15 is the size tire you're wanting. Just make sure that your tire weight rating is at least as much as your axle and you're good to go!
Helpful Links
Mel K.
9/2/2020
Hello, I'm trying to figure out what tires and wheels I need for a odd trailer that has a sun room type building on it ( mostly glass) it's sitting behind a house I purchased and I want to move it. I have the axles and springs in place and need to purchase the spring bolts somewhere and decide what tires to use, its a double axle with 30" between spring bolts, the bolt pattern on the hub is 4.25 from lug to lug. There;s about 8.5" distance from the spring bolt to the bottom of the trailer frame.
Jon G.
9/3/2020
What is the distance from the center of your hub to the trailer frame? It sounds like you have a 5 on 4-1/2" bolt pattern. You can confirm this with the attached article. Typically the bolts used to attach the leaf spring to the hangers has a 9/16" diameter so a wet bolt like part # 126B2 can be used. You'll need to confirm this on your end though.
Helpful Links
Mel K.
9/9/2020
@JonG sorry just got back in town, this frame has a unique structure on it (is it possible to send a picture?) Not sure on the wheel diameter and tire size, yes it is 5 lug, .
Mel K.
9/10/2020
@MelK I measured the 5 lugs again and sure looks like 4.25 from lug to lug. The distance from hub to bottom of trailer frame is 16" but the building on the frame drops down 3" and it looks like the tires will hit, so from the center hub to the structure its 13" From face of the hub out there is 3.5" clearance and from face of hub to the frame there is 5.5" clearance. Do all the 9/16 bolts come with a grease fitting?
Jon G.
9/14/2020
@MelK If it really is 4.25" then I'm afraid we won't have any rims that are compatible. As far as tires go I think your best bet is the Taskmaster 4.80R12 Radial Trailer Tire - Load Range C (990 lbs at 90 psi) # TT48012C, but you'll want to make sure that 990 lbs (per tire) is enough capacity for your trailer. You basically just want to make sure that your combined tire rating is at least as much as your axles. It varies if the wet bolt actually comes with the grease (zerk) fitting. Here is a link to our selection of 9/16" bolts that you can filter through.
Quade
8/31/2020
I have a 1991 Excel 5th wheel 29 foot. But someone put vehicle tires on it. I need to figure out what size tires it supposed to have
Jon G.
9/3/2020
Look for a sticker either on the frame, in a compartment, or elsewhere on the RV. Sometimes there will be a sticker that shows what size tires the RV should have. If the tires right now don't have a clearance issue you can let me know what size they are and I can tell you what the equivalent would be for trailer tires.
Bill
8/30/2020
I currently run 225 75R15 tires I want a little taller tire to improve ground clearance .... I’m looking at new axles but thought I’d try the tire route first if possible
Jon G.
9/3/2020
You'll get a little bit of ground clearance with larger tires but you really won't see that much of a difference. Your 225/75R15 tires have a diameter of 28.4" and even if you installed 235/85-16 tires which have a larger diameter of 31.6" you're really only gaining half of that in height. So you're looking at an increase of about 1.5". You'll see the most increase by using an over-under kit like part # K71-385-00 or by installing taller hangers.
Ray
8/14/2020
Can I put 13 inch tires on my 8 ft trailer instead of the 12 inch going to FLA pulling my golf cart
Jon G.
8/26/2020
As long as you can have 4" of clearance between your tire and the fender as well as 2" of clearance between your tire and the trailer frame you can definitely upgrade the tire size. Here is a link that I think you'll find helpful.
Helpful Links
Jt
8/13/2020
I bought a utility trailer with ST205/75/15 tires. I am an inch to tall to back the trailer into my garage (with a UTV on it) and was wondering if its possible to put on smaller tires (maybe a size 13) to save a few inches? This assumes the load rating supports it.
Robert M.
8/6/2020
Can I change my 14inch to 15 inch rims and tires on a star craft ar one 17 rd year 2016. I want a load range e tire. Thanks
Jon G.
8/9/2020
As long as you can retain about 4" of height clearance between the tire and fender and then at least 2" of clearance from the sidewall to your trailer frame you are good to go.
Shane N.
7/30/2020
Trying to determine the right size tires for a 2013 Gulf Stream Conquest 323 TBR that I just bought.
Jon G.
8/9/2020
I wasn't able to find anything either. I'd try reaching out to Gulf Stream Coach with your VIN as they should be able to tell you what came on your trailer.
Chris R.
7/30/2020
This is really dependent on the actual loaded weight of the trailer, along with what kind of clearance you actually have available below the fenders. Do you know what size is currently used on the trailer?
Gary H.
7/25/2020
Have a boat trailer withe 2 tires size 185/70R13, must be a discontinue size, what is the closest size tire they may be a little smaller but not bigger because of fender, needing a spare.
Gary H.
7/30/2020
@ChrisR Found a plate on boat trailer that calls for P175/80B13, should I change both tires to that size and just keep old tires for spares.
Jon G.
8/9/2020
As long as the 175/80-13 tires have enough weight capacity to handle the trailer then go for it (see attached link). I only recommend using a different sized spare to hobble along a mile or so to your next exit. It would be best to have all of your tires the same size that way if you have to swap one out you can continue on your travel until you can find a tire shop.
Helpful Links
Joey
7/18/2020
I need new wheels(rims/tire) for a homemade trailer. The tire size is 205/75R15 The hub is a 5 lug 4-1/2 but the center hub hole is only 2-1/2 inches across, Do you have any wheels that will fit this. I do not see a way to filter by hub/pilot size. All the ones I see are 3.19 inches or larger.
Chris R.
7/22/2020
All of our wheels are lug-centric (which is almost always the case with trailer wheels), which means they center and secure to the hub using the lugs - not the hub itself. That's a long-ish way of saying the pilot hole diameter doesn't matter. I've linked our full selection of radial ply 205/75R15 tire/wheel combos below.
Jimmy
7/10/2020
I just bought a 1998 sportsman camper trailer 26 ft and wieght 4500 with dual axal its a bumperpull it has 4 diffrent size tires on it i would like to know what it the actuall manufacturer size to go on it i cant find anything on google searchs untill i found this site hopefully. Yall can help thanks
Chris R.
7/13/2020
Unfortunately there's no way for me to verify what the factory/stock tire size was for your 1998 Sportsman trailer, though you will definitely want to change out the tires so that they are the same ASAP. I might just match to the largest tire size you currently have mounted to ensure sufficient weight capacity.
Udo M.
7/8/2020
I have a trailer with 5 on 4 1/2" and 12" Mickie mouse wheels. I need to go larger not for the load 1 (Motorcycle ) but for the tow vehicular. I like to go with 14-15 " wheels. To see what will fit, I need the backspacing (offset) for the 14"x 6" wheel and 15"x 6"
Chris R.
7/13/2020
Are you looking at a particular model wheel? Most of the wheels we have available have a zero offset, which is pretty standard for trailers.
Udo M.
7/13/2020
@ChrisR 0 offset means there have the bolting surface in the center. If this is the case I can figure out what I need. Need to take some measurements.
Danny
7/6/2020
I have just bought a 2017 RAM 3500 to replace my 2013 F150 EcoBoost to pull my fifth Wheel and I may have to raise the trailer up a few inches. I was thinking about getting the taller tires first But I cant find a suitable tire to replace the ST225/75/R15's. Any suggestions besides investing in 16 inch rims? I only have 4" clearance for upward travel in the wheel wells and 4.5" between tires. The axle is already under the leaf springs! I appreciate your help, Danny
Chris R.
7/7/2020
Taller tires will increase the trailer height a bit, but the problem is that you'd have to get significantly larger tires to really make a difference - and it doesn't sound like you really have the fender clearance to make that possible. To raise the trailer 3" just from new tires would require tires that are 6" larger in diameter/height than what you currently have (since half of the tire sits above the axle). My best recommendation for raising the trailer would be to simply cut off your current hangers and replace them with longer ones. I've linked our full selection below.
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Steve S.
7/2/2020
my current pop up has a 20.5x8-10 tires which I believe is a 5 x 4.5 bolt pattern. I have heard radials are much better and a smoother ride. Is it possible to upgrade to radials and what sizes would I be looking for?
Chris R.
7/7/2020
A radial ply tire is definitely a better option, especially when it comes to highway travel. In your existing tire size we only have bias units available, but if you upgrade a bit you could go with a 145/80R12 like the Kenda # AM31202. This tire/wheel will be about an inch larger in diameter/height but around 2.7" smaller in width. It features a maximum load of 1,220 lbs at 65 psi.
George C.
6/26/2020
currently have goodyear 195/75r14 on utility trailer what is an inexpensive replacement?
Chris R.
6/26/2020
The closest trailer tire size we have available to that is a 205/75R14, which will be a little under an inch larger in diameter/height than your existing tires. The Contender # C20514C is an excellent, economical option. It features a max load of 1,760 lbs at 50 psi and an 81 mph speed rating.
Jeff B.
6/24/2020
I have a trailer that was built on an axle (home made) and the tires are 245/50 R16. Could you recommend a trailer tire size that would work?
Chris R.
6/26/2020
The smallest 16" trailer tire size we have is a 235/80R16 like the Prodivder # TTWTRTM2358016E. This tire will have an overall diameter/height of around 30.7" and a width of 9.25".
Hunter L.
6/23/2020
My camper has 7.00-15LT tires and I'm having trouble finding a replacement size, it needs to be really close to the same size so I dont have to flip the axles under the springs to make sure it doesnt sit too low, thank you for the help in advance.
Tony S.
6/13/2020
My old trailer PRYOR 1988 has st205/75d14 needs tires replacement, can you advice a good and cheap replacement tires.
Raven D.
6/11/2020
Just acquired an old EZ Haul trailer. Numbers on the tires are 8 15 15. No letters. I did not find this on the chart. Does anyone know what size tires I should be looking for?
Chris R.
6/13/2020
I've not heard of that tire size listing before. Are there by chance any other numbers printed anywhere else on the tire's side wall?
Mike B.
6/10/2020
Will a 14" tire and rim fit under my fenders on a Kar Kaddy? I currently have 13".
Chris R.
6/13/2020
It depends on how much fender clearance you currently have available with the 13" tires. The Kar Kaddy dollies we have in stock actually come with 14" units attached, so I'm thinking you'd be okay but I definitely recommend checking to be sure. We recommend maintaining at least around 4-1/2" of space between the top of the tire and fender. The smallest size 14" tire/wheel we have available, a 205/75-14 like the Kenda # AM32156, has an overall diameter/height of 26.3".
Taryn R.
5/23/2020
I have a trailer with tires sized 175/70/14 84T but I think I need something that is higher loadbearing, what size will fit the wheel?
Chris R.
5/26/2020
A 175/70-14 tire size isn't too common on a trailer. A close alternative that will fit your existing rims and hopefully offer a higher load capacity (I'm not sure what your existing tires are rated for) is a 205/75R14 like the Kenda Karrier # AM10235, which features a 2,200 pound limit at 75 psi. This will be just over 2" larger in diameter than your current tires.
Tammy
5/6/2020
What is a different size tire that could be used to replace an a 8 x 14.5 ply 14 tire for a mobile home trailer?
Chris R.
5/8/2020
The only tire we have available that will fit your existing 14.5" wheel is the same 8-14.5 unit like the Kenda K39 # AM10321. Any other size would require you to change wheels as well. If you're okay with this, an ST205/75R15 size like the Provider # A15R6WSD would be really close to what you have. This would be smaller in diameter/height by just over a half inch and the width is essentially the same.
Chris R.
5/8/2020
We only have one 8" tire size larger than your existing 4.80-8 unit, and that is with a 5.70-8 like the Kenda # AM10013. This tire size features an overall diameter/height of 18" (compared to 16.1" on your existing tire) and a width of 5.8" (compared to 4.6"). Anything larger would require a new wheel as well.
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Phillip
2/21/2020
Old 10.00 x15 lowboy tire what is diameter need tire size for 17.5 Dayton wheel
Chris R.
2/23/2020
A 10.00-15 size tire will have an overall diameter of around 36" and a width of 10.8". It's designed to fit 15" x 7.5" wheels so it's not going to work on your 17.5" rim. For this size wheel you will need something like the Provider 215/75R17.5 # TTWP15175, which has a 30.2" diameter and a width of 8.31".
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Chuck
11/17/2023
Hello: I recently purchased a 2019 ITI enclosed cargo trailer. It is being worked on remotely so I don't have it to refer to, but I believe it has a 5 bolt wheel. What is the correct size wheel and pattern to buy for a spare? Thanks Chuck