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Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range C

Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range C

Item # AM31952
Our Price: $146.15
You Save: $79.80
Trailer Tires and Wheels
Shipping Weight: 30 lbs
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AM31952 - 175/80-13 Kenda Tire with Wheel
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Radial tire has a ply rating of 6 and a 1,360-lb maximum load at 50 psi. The 13" diameter x 4-1/2" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish. Great Prices for the best trailer tires and wheels from Kenda. Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range C part number AM31952 can be ordered online at or call 1-800-940-8924 for expert service.
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Kenda Trailer Tires and Wheels - AM31952

  • Tire with Wheel
  • 13 Inch
  • 5 on 4-1/2 Inch
  • 175/80-13
  • Load Range C
  • Steel Wheels - Galvanized
  • Boat Trailer Wheels
  • Radial Tire
  • M - 81 mph
  • Kenda

Radial tire has a ply rating of 6 and a 1,360-lb maximum load at 50 psi. The 13" diameter x 4-1/2" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish.


  • Kenda Karrier special trailer radial tire
    • Special trailer tire design
      • Couples the strength of a bias tire with the durability and stability of a radial tire
      • Created specifically for trailers and not intended for use on other vehicles
    • Double steel belts and full nylon plies combine for superior function and long life
    • Computer-generated tread design and premium rubber-compound materials
      • Superior traction in wet or dry conditions
  • 8-Spoke steel wheel is galvanized to resist rust
  • Tire-and-wheel assembly meets Department of Transportation specifications


  • Rim dimensions: 13" diameter x 4-1/2" wide
  • Bolt pattern: 5 on 4-1/2"
  • Wheel capacity: 1,660 lbs
  • Wheel bolt size: 1/2"-20
  • Offset: 0
  • Pilot diameter: 3.19"
  • Tire size: ST175/80R13
    • Section width: 7"
    • Outer diameter (when inflated): 24.1"
  • Tire capacity:
    • Load range: C
    • Ply rating: 6
    • Maximum load: 1,360 lbs at 50 psi
  • Maximum speed: 81 mph (speed rating M)
  • Warranty:
    • 5-Year on tire
    • Limited 2-year on wheel

1-Year Worry-Free Guarantee

This tire has a 1-year worry-free guarantee. If within the first 12 months the tire is damaged in any way, it will be replaced at no charge.

Radial Tires vs. Bias Tires

Radial tire vs bias tire graphic

Radial ply tires are designed for trailers that are towed on the highway. The cords on a radial tire are positioned at a 90-degree angle to the direction of travel so that they lay across the width of the tire from wheel lip to wheel lip. This construction prevents the cords from rubbing against one another when the tire flexes, unlike the cords on a bias ply tire. As a result, radial tires have less rolling resistance and heat buildup, which leads to a longer tread life and improved steering at higher speeds.

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Bolt Pattern - Side

Measuring the distance from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

31952 8-Spoke 13" Galvanized Wheel and Karrier KR03 Radial Tire - LR C

Customer Satisfaction Score:

Customer Reviews

Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range C - AM31952

Average Customer Rating:  4.8 out of 5 stars   (5410 Customer Reviews)

Radial tire has a ply rating of 6 and a 1,360-lb maximum load at 50 psi. The 13" diameter x 4-1/2" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish.


Tires are excellent and rims are way nicer than I anticipated. etrailer has excellent customer service. They fixed an issue with my order, on 4th of July weekend, and had my tires to me in 5 days.


I ordered 4 sets tires and rims for my enclosed sled trailer. I ordered this brand because of the Galvanized rims(originals were rusty and peeling). Also I liked the idea of ordering the tire and rim as a set. I only gave 4 stars because the galvanize on the rims is not even. You would think 2021 we could get a nice finish !!!!



They are installed on my enclosed snowmobile trailer. I only use it in the winter months. So far so good !!!

Etrailer Expert

Mike L.


@Bernel Glad to hear that! Have fun this winter!


I got the pair of galvanized rim with tires yesterday. Happy with the delivery time, however, it seems the galvanized coating bubbled up in both rims. I spoke to a rep and sent pics and the reply was “cosmetic damage”…. “Damage” is not an encouraging word, especially coming from a company representative describing the condition of a product they sent.


Was looking for a decent Load Range C tire/wheel combination. This fit the bill and I like the galvanized wheels.


I am sure the tire and wheel will function fine after these go to a tire shop to be balanced. I was a bit upset to unpack these to find that they had no weights on the rim which tells me they are not balanced. One other thing that I am not happy about is the finish on the wheel. Very sharp jagged edges around bolt holes and cutouts. They did not take pride in the finish of the wheel before the galvanizing process either which is very blotchy and far from a smooth. I am half tempted to return the product for these reasons. Will sleep on it and make decision tomorrow. Shipping was fast, and the tires are nice

Etrailer Expert

Rachael H.


Trailer tires are not generally balanced with wheel weights like automobile tires and wheels are balanced. Typically the tires and wheels are mounted so that the high spot on the tire is aligned with the low spot on the wheel.


So far so good , ordered galvanized because they are on a snowmobile trailer in NYS , I had them spin balanced before installing, put a few hundred miles on them so far and no issues, would buy them again


Great spare tire for our bay boat trailer and Aluma utility trailer. We leave it in our covered truck bed while towing either one just in case we have a flat. Keep your air pressure checked on your spare as well...!


Blew out left bearings and ruined tire sidewall, yikes! Took this opportunity to move leaf springs from underneath axle to on top gaining 3+ inches then up-size tires and wheels from 12 inch to ST175/R13 inch. tires on Galvanized wheels. Lowest strength component is 2,000 lbs. axle but on original trailer configuration much load would sit fenders down onto tires, less than 1 inch clearance. Now you can see in photos there is about 3 inches clearance with ATV loaded on. Have more ground clearance and trailer is almost bubble level after raising hitch point about 2 inches. I expect galvanized wheels to maintain good looks and functionality for many years to come. Now I gotta paint the trailer, black this time.


Wheel and tire arrived with what looked like rubber shavings or spaghetti like rubber strings that peeled out of the bead area of the tire. The wheel itself looked like it was spray painted and it appears the paint/galvanizing was blobbed or puddled on the back side of the rim as if it was leaning at an angle and filled up in an area that collected the liquid material. Wheel wasn't balanced which I think is necessary for smooth operation.

Etrailer Expert

Katrina B.


Trailer tires are not generally balanced with wheel weights like automobile tires and wheels are balanced. Typically the tires and wheels are mounted so that the high spot on the tire is aligned with the low spot on the wheel. As for the galvanization blobbingpuddling, these wheels are dipped and drip dried because of this, it is common for for the wheels to have bubbles.


Great service first if all and actually delivered a day early!!????
Product is exactly what I ordered and looks even better!
Performance is yet to bet determined being it’s a tire & rim.



Rims are looking as good as new! Tires are also standing up to the everyday grind! Wouldn’t hesitate to buy again

Etrailer Expert

Mike L.


@Glenn That's great, we're happy to hear that!!


I purchased two of these for my boat trailer as I recently had a tire failure on the freeway. I only needed one wheel and two tires, but wanted both wheels and tires to match. It seems the tread pattern on these is about the same across several different brands, but I've had Kenda tires on other trailers and I hope these last the same way. Like others have said, the galvanizing on these wheels are not the best. They are clearly coated well enough, but they need a better quality control. Luckily for me most of the imperfections are on the back side of the wheel and shouldn't bother my OCD too much. There was only a couple small issues on the front of the wheel that I was able to very lightly smooth out with some hand tools (-1 star due to wheel coating). Like most things from etrailer, these are still a fantastic value! I couldn't have purchased two tires at this price locally, let alone two wheels and the mounting/balance charge.


Very pleased! My new wheels & tires arrived within 2 days of me placing my order (2 days earlier then they were supposed to), and they look great and I never had any issues.


Purchased as a spare for a trailer. Perfect for my needs. Fast shipping too.


1996 Parker Tilt 4.5 x 9. Had 12” wheels. Put these 13” ones on. Had to gain some lift by changing leaf spring hangers. From 2 3/8 to 3 3/8. Tire went on but very close to fender, and offset a little. We cut orig fender welds, gained 2” lift on each fender side by way of 2” angle iron. See pics. Not bad for two rural Southern boys in the barn with saws, grinders, and wire feed welder. Easier to gain 4 to 5 inches lift by flipping axle and put leaf on top, But, this is a Tilt trailer. The tilted bed would be steep and tilt beam may run out of pivot space. Packaging & delivery was outstanding.


Had a mismatched set of tires AND wheels on my Jet Ski trailer from previous owners, so I had to get matching! Galvanized wheels not quite as pretty as chromed, but these create a really nice look for the trailer! Very decent price, quick shipping as well. Love 'em...


It's a great tire and holding up well. We're going to order another one for our trailer as a spare.


Fast shipping and great customer service. This product has warranties...vs others. I would have given a five star review but the galvanized finish is not smooth in some areas. This seems to be a common problem with all brands in this finish.


The wheels look nice on my boat trailer. There were some scuffs from shipping as the supports in the box to keep the wheels separated had collapsed, but they're cheap and made to be used so they will work for me.


Overall great quality tire, rims are decent. galvanized finish have some blemishes in the rim but nothing that effects the integrity of the tire and rim.


This is a spare tire so not used yet. Holds air well.


Your company was well ahead of schedule. Thank you for your professional service. I will let you know how the tires perform after I put them on the trailer.


The tires arrived as promised and work perfectly on my trailer. It is only a single jet ski trailer but they made the trailer pull much smoother than the 4.80 tires. Also the tread appears it will last a long time, even handling rough terrain.


I was looking for new tires for my 4 place snowmobile trailer as I put new leaf spring axles on it. Pricing was reasonable compared to the other manufacturers out there. Etrailer saved me $75 on 4 sets of tires. Needed the galvanized steel rims as this trailer will see winter and salted roads. Thanks etrailer for the great pricing on your products.

Cutting W.


GreaT. The rims are like new the day I bought them. Ill be ordering more in the future for my down ice shacks.


I'm happy with the Radial Tire and Galvanized Wheel package etrailer helped me with. Between the pictures and video of the product on the website, multiple questions submitted and answers received (even though I interfaced with multiple agents on the phone and email, they're all up to speed on customer information), packaging, product quality, price, ease of purchase, and follow up after receiving the delivery(which was prompt), It's been an excellent experience! I will use etrailer again for future purchases and recommend as first choice!


Perfect for my aluminum bass boat!

Show More Reviews

See what our Experts say about this Kenda Trailer Tires and Wheels

  • Do Trailer Tires Need to Be Balanced
    It is not a requirement to balance trailer tires like you do for your vehicle tires. The reason for this is because the trailer tires have a tendency to "throw weights". This means that the weights come off the wheels. This can happen for a number of reasons, but it is not uncommon for the weights to be thrown off when towing a trailer empty (the trailer bounces excessively because of the no load conditions) or when making very tight turns on tandem or tri axle trailers. Furthermore, the...
    view full answer...
  • Changing ST185/80-13 Tire Size on Shorelander Boat Trailer
    Because the size of both tires is so similar, you can certainly use the # AM31952 as a replacement. An ST185/80-13 tire will typically be slightly larger in diameter and width than an ST175/80-13 tire, but only by around 1/4 inch. Although the # AM31952 has a higher load rating than your existing tires, this higher rating will not provide any additional capacity over and above the capacity of your axle. For instance, lets say that your boat trailer uses a 2,000 lb axle. Two of the #...
    view full answer...
  • Do the Tow Vehicle Tires and Trailer Tires have to All be the Same Type of Tire Bias or Radial
    As long as the tires on your trailer are the same construction type on both sides (either bias ply or radial) it will be fine. The tire style doesn't have to match what the vehicle has. Most all vehicle tires, with some exceptions, are radial nowadays anyway.
    view full answer...
  • What's Difference Between Trailer Tire Sizes ST175/80R13 and ST175/80D13
    The D in the second tire size you listed indicates that the tire is a bias ply configuration but the B in the first size does not match anything but since it's close to the letter R most likely that's what you have. That would indicate that it's a Radial construction which is the preferred style. Radials like what comes with the part # AM31952 that you referenced are smoother, build less heat, and have higher speed ratings generally like this one which is rated for 81 mph. Bias plys tend...
    view full answer...
  • Can a Trailer with 12 Inch Tires and Wheels be Upgraded to 14 Inch Tires and Wheels
    You do not necessarily have to change the axles or suspension to go to a larger tire size. What you will need to do though is determine how much space there is from the inside tire side wall and the trailer frame and how much space is available above the tire (if the trailer has fenders that could interfere with a larger size). Then you can determine if a larger tire will even fit. If you could look at the tires you have now and tell me the size I can tell you how much larger a 14 inch...
    view full answer...
  • How to Determine Replacement Tires for Calkins Trailer
    We have no way of looking up the stock tire size based on a serial number or VIN. Without a year or model I can't really look for pictures either to see what might have come standard. I would check to see if there is a data plate/sticker with this information listed somewhere on the trailer. Typically you want to replace the tires with the same size that you have now. If you have ST175/80R13 tires on the trailer like the # AM31952 you looked at then that is what I would stick with for...
    view full answer...
  • Are There Replacements Available for 165/65R13 Tires?
    We do not carry 165/65R13 tires and the closest we can offer is 175/80R13. These tires are going to be larger in diameter by 2.6 inches and be 0.4 inches wider. The 175/80R13 tire and wheel combinations we offer are going to commonly have a 5 on 4-1/2" bolt pattern such as the Kenda Karrier # AM31952. I have added a link to a help article on determining bolt pattern for you to take a look at, as well as a link to our selection of 175/80R13 tire and wheel combinations.
    view full answer...
  • Replacement for Out of Balance Galvanized Wheels
    If your wheels are bent I recommend replacing them. You will need to know your wheel's bolt pattern; if you do not know the bolt pattern you can take a look at the help article I've added which goes over how to figure it out. For example, the Kenda Karrier Karrier # AM31952 has a 5 on 4-1/2 bolt pattern and 175/80R13 sized tire with a load range of C, which has a maximum capacity of 1,360 lbs at 50 psi. I've added a link to our page with each of our wheel and tire assemblies for you...
    view full answer...
  • What to Consider when Going from a 175/80B13 Tire Size to a 185/80R13
    The difference in diameter between the two tire sizes you listed is .3 of an inch. I highly doubt that difference would cause an issue, but just to be safe you should still check to be sure that when the suspension of the trailer compresses that would not cause interference. You also will be going from a bias ply tire to a radial which is also an upgrade since radials tend to run cooler and wear better. I attached a couple helpful FAQ articles on trailer tires for you to check out also.
    view full answer...
  • What Is Weight Of Kenda ST175/80R13 Tire with Galvanized Wheel Combination
    The whipping weight of the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range C # AM31952, will be approximately 30 pounds. This is the shipping weight so you can subtract 1-2 pounds for shipping material. Additional information and a video attached.
    view full answer...
  • Tread Depth of the Tire on the Karrier ST175/80R13 Radial Tire w Galvanized Wheel # AM31952
    I went out into our warehouse to measure the tread depth of the tire on the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel # AM31952 and found it to be .3 of an inch. The speed rating for the tire is the same for nearly all trailer tires at 65 miles per hour. I attached a review video and a help article for trailer tires for you to check out as well.
    view full answer...
  • Do Trailer Wheel and Tire Combinations Come Balanced
    The ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel # AM31952, is received from our supplier with the tire mounted on the wheel, the supplier does not balance the combination, but when the tire is installed on the wheel they will line the high (heavy) spot on the tire with the low (light) spot on the wheel. This does not completely balance the tire and wheel combination but it does eliminate any excessive out of balance condition. In most cases this method of lining up the high...
    view full answer...
  • Options For 13-Inch Tires And Wheels To Be Used As A Spare On Boat Trailer
    We have tire wheel combos that have a 185/80-13 tire but they are all Bias-ply and not radials like you said you are using. The 13-inch radial tire or combo we offer is a 175/80-13. I have attached a link to the tires and tire/wheel combos we offer you can check out. If you are looking for a combo you will need to know the wheel bolt pattern of the wheels you need for your trailer. I have also attached a link to a helpful article that explains how to determine the wheel bolt pattern of...
    view full answer...
  • Recommended Air Inflation Pressure for 175/80-13 Tire Included with AM31952 Wheel/Tire Combo
    Kenda recommends that their trailer tires like the one included with the # AM31952 wheel/tire combo be kept fully inflated to the 50psi listed on the tire sidewall. I've linked to a product description video for the # AM31952 wheel/tire combo.
    view full answer...
  • Using Smaller Wheels/Tires on a Two PWC Trailer
    You certainly can. As long as the combined load rating of the 2 tires exceed the weight of the trailer and the waverunners/gear loaded on it, you'll be just fine. The Kenda # AM31952 175/80-13 Load Range C tire you'd looked at would work great as long as your trailer and wave runners didn't weigh more than 2720 lbs. The tire is mounted on a 13 inch galvanized rim with a 5 on 4-1/2 inch bolt pattern. You can confirm the current loaded weight of your trailer at a truck stop scale or the...
    view full answer...
  • Speed Rating Of Karrier Trailer Wheel and Tire # AM31952
    The speed rating of the trailer wheel and tire part # AM31952 that you referenced is 81 mph.
    view full answer...
  • Speed Rating for Kenda Karrier ST175/80R13 Radial Trailer Tire with 13" Wheel # AM31952
    The Kenda Karrier ST175/80R13 Radial Trailer Tire # AM31952 referenced in your question has a maximum speed rating of 65 mph, which is the standard for most trailer tires unless otherwise listed. This radial tire has a maximum load of 1,360 pounds at 50 psi. I have attached a short video demonstration on this tire and wheel combo that you can also check out.
    view full answer...
  • Upgrading Tires And Rims On A Boat Trailer From 12" To 13"
    Hey Neil thanks for your question. I will start by saying that we should be able to determine exactly what size tires you can or can't use and we can avoid the need for a return. I have linked our return policy for you below if you want to read it over. As far as upgrading the rims on you boat trailer, it will completely depend on what kind of clearance you have in the wheel well/fender area. Our rule of thumb is that you want 3" between the tire and the fender on all sides, and at least...
    view full answer...
  • Would Karrier ST175/80R13 Radial Trailer Tire AM31952 Fit 2016 Little Guy T@g T A G camper
    Most likely yes it will, but I'd need to know the bolt pattern of your current hubs. Can you count the lugs for me? Also what size tire do you currently have? If it's a 5 lug wheel with a ST175/80R13 tire installed on it the part # AM31952 would fit and work well.
    view full answer...
  • Tire & Wheel AM31985 is Not Holding Air
    There could be a number of reasons your Karrier Tire & Wheel # AM31985 is not holding air, but I'd start with the valve stem, as it may be loose. What I'd do is spray soapy water on the valve stem to see if it's bubbling to verify if it's leaking. Or you can do the same with your tire after inflating it should it not be the valve stem.
    view full answer...
  • What is the Weight of the Kenda Karrier ST175/80R13 LR-D with a Galvanized Steel Wheel
    Most wheels and tire combos of this size will weigh roughly the same, but it mostly depends on the wheel. The # AM31994 you were looking at has a galvanized steel wheel and weighs roughly 31-lbs. This is a Load Range D tire. Similarly, the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel - 5 on 4-1/2 - Load Range C # AM31952 weighs 30-lbs, so there's only about a 1-lb difference.
    view full answer...
  • Spare Wheel and Tire for Aluma Trailer 6310H
    You'll have to get me the bolt pattern and tire size that is stamped on the sidewall of what you currently have on your trailer for me to determine what the correct spare would be.
    view full answer...
  • Is Trailer Tire and Wheel # AM31952 Balanced
    The tire and wheel combos we carry like # AM31952 are not machined balanced. You can have the tire and wheel combos balanced at a local tire shop if you wanted to. What our tire manufacturers will do is line up the light spot on the tire with the heavy spot on the wheel. This is a type of balancing but not like how car tires are balanced (with weights on a balancing machine).
    view full answer...
  • Can You Upgrade from 4.80x12 to 175/80-13 Tires On Boat Trailer
    The next size up from a 4.80x12 is a 175/80-13 which will be around 2.6" larger in diameter and 1.6" larger in width. Therefore, you'll need to make sure you have the space for this new size, but please note the difference will be halved. For this, I recommend the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel part # AM31952 which has radial plies for longer highway trips and a galvanized wheel for use in water. It has a 5 on 4-1/2" pattern.
    view full answer...

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