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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
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Shipping Weight: 31 lbs
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Kenda Tire with Wheel - AM31952
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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. Lowest 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 etrailer.com or call 800-298-1624 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 Reviews

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

Average Customer Rating:  4.9 out of 5 stars   (2739 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.

- AM31952

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!

- AM31952

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.

GreaT. The rims are like new the day I bought them. Ill be ordering more in the future for my down ice shacks.
Cutting e - 07/23/2021

- AM31952

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

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.
-- Etrailer Expert Rachael H - 08/09/2019

- AM31952

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.

- AM31952

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.

- AM31952

Good looking and durable so far. Unfortunately haven't used trailer much. Plan to buy trailer hitch from etrailer for me vehicle now.

- AM31952

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...

- AM31952

These were an upgrade for an old boat trailer that had little 12” tires and rims I love these tires and rims because I pull my boat at least 90 miles both way when I fish this boat. I pull them 70 mph in Texas and have great results with no flats and they are lasting great.

- AM31952

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.

- AM31952

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.

- AM31952

Once again, etrailer delivers on their promise providing timely quality products!

- AM31952

Good value. Quick shipping. Everything as advertised.

- AM31952

Overall great product. Only minor issue was the galv. finish wasn't as smooth as I thought it should be and there were some loose galv. in the holes of the rim. All in all very minor issues. Would buy again and would recommend.

- AM31952

great replacement, can't beat galvanized for rust management

- AM31952

I am getting some vibration from those wheels I want and had them balanced I don’t know if that’s going to help I wish I had ordered the aluminum rims instead

- AM31952

etrailer is the best in the business. Fair pricing, quality goods and great service. I've used them for years and will always buy from them. Great Job etrailer!!

- AM31952

I purchased an old utility trailer to haul my golf cart, the tires were mismatched and the wheels where rusty, so I got in touch with etrailer to see what I could find to fit the trailer. They had many combinations, with load limits, size etc. to choose from. I got two wheels with tires, just what I wanted for less than $200 including shipping to Idaho. My local tire dealer wanted $135 for each. Perfect fit, with great follow up from etrailer to make sure everything was good.

- AM31952

What I wanted as a spare for a great pr ice.

Its a spare. Thankfully I havent had to use it but I feel better knowing that I have one now.
Brian H - 05/02/2021

- AM31952

Good looking solid tire. Just put them on my boat trailer. They seem good and came as advertised very quickly with no shipping expense-good deal!

These tires have been holding up well! I normally just use the boat locally, but after getting these tires I took the boat to a mountain lake about 3.5 hrs away and had no trouble at all. Money well spent.
Phil - 04/26/2020

- AM31952

This 13" galvanized rim and heavy duty radial trailer tire looks great. It was a good price, well packed, and I got free shipping because I ordered a needed trailer wire kit & side light fixture to bring up the amount to the required $100 for free shipping. Quick delivery & my tow dolly is ready for the road again. Thanks for the quick turnaround on this order.

- AM31952

Needed replacement tires for my boat trailer. Tried and failed to get the items from another internet order and found etrailer.com and had a pleasure ordering and receiving my tires very quickly. Very nice experience from start to finish!

- AM31952

Great deal! Tire and wheel plus shipping were priced much less than anything i could find locally. High quality great service. Thanks a million........

Still think it was a great deal and everything is is going great with my purchase.
Bob M - 10/11/2017

- AM31952

Great service, delivery & follow up ! AS ALWAYS Only::: Now I need 3 more wheels, the galvanize coat on the new wheel makes my other three look like poor pitiful dull junk

Al - 07/06/2016

- AM31952

This tire and wheel from etrailer is cheaper than replacing a tire at a Local Tire Store. Delivered in a very few days with correct pressure in tires. I just put them on my boat trailer to replace the same ones I bought in 2013 from etrailer. etrailer is the best on-line merchant I ever use.

- AM31952

Tire and galvanized rim are in great condition. I have not used it yet. This tire/rim combo will serve as a spare for a trailer.

Show More Reviews

Ask the Experts about this Kenda Trailer Tires and Wheels

  • What Tire Size Can I Upgrade to For a Higher Capacity From Current ST175/80/R13 Tires
    Generally speaking, you'll need at least 3" of space between the top of your wheel and the wheel well, so if you've got the extra room, bigger wheels/tires might be an option. Depending on what the Load Range your current ST175/80R13 tire is, you might be able to gain some load carrying ability by simply going up to a Load Range D tire like the # AM10210, which are rated for 1650-lbs each. You would gain about 3/4" of lift by going up to an 185/80/r13 tire with a Load Range D like the...
    view full answer...
  • Can 12 inch Trailer Tire Be Upgraded to 13 inch Trailer Wheel and Tire
    An ST145/R12 tire like the Kenda Karrier S-Trail # AM10140 measures 21.3 inches in diameter when inflated and is 5.7 wide. The smallest 13 inch tire is ST175/80R13 quite a bit bigger, measuring 24.1 inches in diameter and 7 inches wide. You'll need to measure to determine if you have clearance. If so, and if you have a 5 on 4-1/2 inch bolt pattern there are a number of options available for this tire with different styles of wheel (if you are unsure of your exact bolt pattern you can...
    view full answer...
  • Can A ST185/80R13 Trailer Tire Be Used To Replace A ST175/80R13 Trailer Tire?
    You will more than likely be just fine replacing your 175/80R13 tires on your boat trailer with ST185/80R13 tires like the Kenda Karrier ST185/80R13 Radial Trailer Tire - Load Range D # AM10208 due to them being so close in size. The ST185/80R13 will only be about 1/2" taller and about 1/4" wider, so as long as you have at least 3-1/4" between the top of your current tire and the bottom of your fenders you will be just fine. There is a slight benefit in going with the larger tire,...
    view full answer...
  • Larger Replacement for a 4.80-12 5-Lug Trailer Tire and Wheel
    I have several options to upgrade 4.80-12 wheel/tires on a trailer without replacing hubs, ranging from 13" - 15". The best option will really come down to how much space you have available and this will be different for each trailer. The Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel part # AM31952 would be a good option assuming you have the correct amount of space for the 24" diameter x 7" wide dimensions. If you need larger fenders to accommodate this new size, the...
    view full answer...
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  • 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...
  • Galvanized Steel Wheel and Tire Combo with Tire Size ST175/80R13
    The best priced wheel and tire combo we carry with a 5 on 4-1/2 inch lug pattern, has a ST175/80R13 tire mounted to it, and the rim is made of galvanized steel would be the part # AM31952. I attached a review video to the right for this part number as well.
    view full answer...
  • Upgraded 13 Inch Wheels/Tires for a Pontoon Boat Trailer
    The new 175/80-13 tire will be 3-1/2" larger in diameter than the old 205/65-10 tire you have now. This means you will lose around 1-3/4" of clearance. I recommend that you have at least 3" so you will be close but ultimately the choice is up to you. The next size down would be a 145/80-12 (Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire part # AM10140 with Steel Spoke Trailer Wheel part # AM20134) and you will only loose around 1/2" with this size.
    view full answer...
  • Can I Upgrade from 12 Inch Wheels to 13 Inch Wheels on a Boat Trailer
    Generally speaking, it is not a huge deal to upgrade one size (12" to 13") so long as you have clearance but the other thing to make note of is the surface area on the hub. If you have a 2,000 lb trailer axle then your hub is likely only rated for use with 8"-12" wheels but if you have a 3,500 lb trailer axle then your hub is likely rated for use with 13"-15" wheels. However, there are hubs for either axle that will allow you to upgrade/degrade wheels so if you can confirm your axle capacity...
    view full answer...
  • 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,...
    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...
    view full answer...
  • Can an ST185/80R13 Trailer Tire be Replaced with an ST175/80R13 Trailer Tire
    If the trailer is supposed to have 185/80-13 tires on it, then you should stick with that tire size and use # AM3S334. This is the correct size tire with a galvanized wheel. The only difference is this is a bias tire and not a radial. A bias tire the cords inside run at a 32 degree angle from the direction of travel and on a radial tire, the cords run 90 degrees across the width of the tire. If you go with a smaller 175 tire and wheel combo, it will be about a half inch more narrow,...
    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...
  • 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...
  • 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...
  • 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...
  • 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...
  • Radial 175/80R13 Trailer Tire or Bias Ply 185/80D13 Trailer Tire for a 2005 StarCraft RV
    You should have no problem going with a 185/80R13 tire to replace the 175/80D13 that you currently have. These sizes both fit the same size rims and the 185 would only be about .3 of an inch taller, so unless you had some super tight fender clearances it would fit just fine. Also the D13 in the old tire size indicates that you had a bias ply tire, the R13 in the new size you are considering is an upgrade since this means it is a radial tire. However, in the 185 size there is only bias...
    view full answer...
  • Parts Needed to Upgrade to a Larger Trailer Tire
    To install a larger 13 inch tire and wheel combo like the Kenda Karrier # AM31952, you will need to get more room for the wheels. With your current tire having a diameter of 21.9 inches and a width of 5.6 inches, these would be quite a bit larger having a diameter of 24.1 inches and a width of 7 inches. You want to keep the side wall of the tire and the wall of the fender somewhere around an inch or inch and a half, but this is not as important as the height. You want to have a minimum...
    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...
  • 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...
    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...
    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...
  • What Size Spare Tire Carrier Stud Is Needed for the Karrier ST175/80R13 Tire with Wheel
    The Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel part # AM31952 works with 1/2"-20 wheel studs like the Kodiak Wheel Stud part # K12WB2. If you are looking for a spare tire carrier for this, the Fulton Economy Spare Tire Carrier with Wheel Nut Lock part # FETCSTL0701 has the 1/2"-20 size you need and is an excellent option since it comes with a lock. I have attached a list of all other spare tire carriers we have for you as well.
    view full answer...
  • Availability of 13 x 4-1/2 Inch Trailer Modular Rim
    The rim that the # AM31952 wheel/tire combo is mounted on is a 13 x 4-1/2 galvanized steel rim with a 5 lug on 4-1/2 inch bolt circle. We don't have a galvanized modular rim (what the rim with the round holes is called) but we do have one that has a silver powder coat finish, part # LHAW165.
    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...
  • Recommended Wheel and Tire with a 5 on 4-1/2 Bolt Pattern to Lower a Trailer by a Few Inches
    In order for you to have a lower trailer you will have to go with a 12-inch wheel and tire combo. A 13-inch tire will only yield a 1/10th inch drop. The wheel and tire I recommend is the Karrier radial # AM31215. It will have a ply rating of 10 and a 1,520 pound maximum load at 80 psi. If this capacity is high enough for the gross trailer weight, then you can use it. With this tire and wheel combo you will see nearly a 3-inch drop. The reason I would go with a radial tire is it flexes...
    view full answer...
  • Radial Trailer Tire Recommendation
    The closest radial tire we offer to the size you mentioned is the Karrier ST175/80R13 Radial Trailer Tire, part # AM10199. This is a load range C radial, special trailer tire that has a maximum load capacity of 1360 lbs at 50 psi. this tire would be approximately 1/2 inch smaller diameter in size than the tire size you rerferenced. We do offer a tire that is the size you mentioned but it is a bias ply tire. It is the Loadstar ST185/80D13 Bias Trailer Tire, part # AM1ST79. This is a...
    view full answer...
  • Can Trailer Tires be Upgraded from ST145/R12 to ST175/80R13
    Since the 21.3 inch diameter and 5.7 inch width of a ST145/R12 tire and wheel like the Kenda Karrier # AM31202 are the widest, in order to get larger and wider tires/wheels you need to upgrade to a ST175/80R13, which measure 24 inches in diameter and 7 inches wide. You can do this so long as the larger tire will still allow you to have at least 3" of clearance from the top of the tire to your fender and at least 1" of clearance between the inside of the tire and your trailer's frame rail. You...
    view full answer...
  • Benefits of Upgrading to 5.30-12 or 175/80-13 Tires On a Boat Trailer
    The benefits of upgrading to larger tires are better weigh ratings, higher speed capacity, larger wheel/tire selection as well as reduced wear/tear on the hubs. If you have the needed space then this is a great option. The 5.30-12 tires are 21.9" diameter x 5.6" wide, I recommend the Kenda 5.30-12 Bias Trailer Tire with 12" Galvanized Wheel part # AM30850. The 175/80-13 tires are 24.1" diameter x 7" wide, I recommend the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel...
    view full answer...

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    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

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