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Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel - 4 on 4 - Load Range D

Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel - 4 on 4 - Load Range D

Item # AM31208HWTB
Our Price: $145.74
You Save: $8.99
Trailer Tires and Wheels
Shipping Weight: 23 lbs
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Radial tire has a ply rating of 8 and a 1,220-lb maximum load at 65 psi. The 12" diameter x 4" wide aluminum trailer wheel with black interior features a 4 on 4 bolt pattern and is corrosion resistant. Great Prices for the best trailer tires and wheels from Kenda. Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel - 4 on 4 - Load Range D part number AM31208HWTB can be ordered online at or call 1-800-940-8924 for expert service.
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Kenda Trailer Tires and Wheels - AM31208HWTB

  • Tire with Wheel
  • 12 Inch
  • 4 on 4 Inch
  • 145/80-12
  • Load Range D
  • Aluminum Wheels
  • Boat Trailer Wheels
  • Radial Tire
  • Kenda

Radial tire has a ply rating of 8 and a 1,220-lb maximum load at 65 psi. The 12" diameter x 4" wide aluminum trailer wheel with black interior features a 4 on 4 bolt pattern and is corrosion resistant.


  • 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 - 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
  • Aluminum wheel is durable and rustproof
    • Attractive split-spoke pattern
    • Black interior is unique and visually appealing
  • Front and back of wheel are clear coated
  • Tire-and-wheel assembly meets Department of Transportation specifications


  • Rim dimensions: 12" diameter x 4" wide
  • Bolt pattern: 4 on 4"
  • Wheel capacity: 1,220 lbs
  • Wheel bolt size: 1/2"-20
  • Offset: 0
  • Pilot diameter: 2.80"
  • Tire size: ST145R12
    • Section width: 5.7"
    • Outer diameter (when inflated): 21.3"
  • Tire capacity:
    • Load range: D
    • Ply rating: 8
    • Maximum load: 1,220 lbs at 65 psi
  • Maximum speed: 81 mph (speed rating M)
  • Warranty:
    • 5-Year on tire
    • Lifetime against structural defects 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"

31208HWTB Aluminum HWT Series S5 Trailer Wheel Black and Karrier KR25 Radial Tire - LR D

Customer Satisfaction Score:

Customer Reviews

Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel - 4 on 4 - Load Range D - AM31208HWTB

Average Customer Rating:  4.9 out of 5 stars   (980 Customer Reviews)

Radial tire has a ply rating of 8 and a 1,220-lb maximum load at 65 psi. The 12" diameter x 4" wide aluminum trailer wheel with black interior features a 4 on 4 bolt pattern and is corrosion resistant.


Upgraded my old and cracked 8-5.70 Bias Tires to these 12" Radial Tires with Aluminum Rims. Made the Jon Boat look great!!! Like the 81 MPH speed rating on these radials vs. the 62 MPH rating on the old bias ply's. Now ready for the highway racing to catch them Big Ole Bass!!! Have always had great service at Really like how they have a video review on every product they sell.


Great wheels I got two of these to upgrade the tires for a 40x48 trailer.
If you are looking for an update I would suggest to go with this.

I wish they would have put the stickers on the back of the rims as the stickers do not come off clean.


I installed these on a 40" x 48" utility trailer from N.T. They look much better and the tires have a higher speed rating than what came on the trailer. They fit nicely in the fender wells and have no issues with them. I torqued the lug nuts down to 90ftlbs for now and will monitor them. I think 90-100ftlbs should be adequate. Plus now I have a spare just in case it's needed.

The order did take 6 weeks to deliver but it was expected and the staff at etrailer was in contact. Happy with the purchase.


The rims and tires is 5 stars, I am disappointed with the ship time. It shouldn’t take 2 weeks to ship something, if you have these items on stock.



Great, at really enhances the look of the trailer


Lighting fast shipping, picked and shipped after hours the same day! It's amazing what a little paint and some new shoes will do for ya!


Nice wheel and tire for my teardrop camper at a great price…and superfast shipping!


Excellent service from Paul at etrailer. Was able to answer all my questions, made recommendations, and had the order shipped that day. Paul followed up with tracking as promised. The wheels and tires look great!

by: 04/25/2022

I receive the tire and wheel package from Ups in one box. everything was packaged correctly with no damage. I replace the tires and wheels that came with my ultra tow trailer. This package is awesome the tires are about 2"wide and higher the the China bombs! We will be taking the trailer on a trip of 5000 miles later this summer I was concerned with the old tires and wheels I have no concerns with the new package. Oh they also look awesome !


I did not want to buy another set of cheap steel rims that rust out in a few years so started searching online for aluminum rims. Found these on (should have started my search there) so bought them. Free, fast shipping and they look great! Will hopefully be the last rims I buy.


Great service from etrailer, the wheels & tires look great. The only disappointment was the manufacturer put stickers on the face of the wheels that was hard to clean off.


The wheels look great and with the heavy duty tires I can load the boat with coolers and camping gear to save from unloading the truck when we arrive at the river in Canada.


arrived a few days earlier than expected. tires/ wheels are much, much nicer than the ones that came with our northern tool trailer. looks sharp!


Love thaws tires, the look so good. Shipping was fast! Came two days before date stated.


Upgraded my Ultra-Tow aluminum utility trailer. Excellent wheel/tire combo and great improvement from the white stock steel powder coated wheels. Can also now fit my 3/8" Pewag security chains through the wheel cut-outs. Shipped in expected time frame and packaged in a manner that prevented any damage.

Only complaint is the oval label stuck on the face of the wheel. It warns you to only use soap & water and not chemicals on the wheel but the adhesive used for the label is so strong I had to use the chemical Goo Gone to remove the residue, talk about irony. They could have stuck this label on the back side of the wheel or use a less aggressive adhesive.


The radial tires appear to be of excellent quality, and the aluminum rims are much better looking than the galvanized ones they replaced.

Two surprises: I found that each radial tire + aluminum rim combination was 5 lb heavier than the galvanized rim + 6 ply bias tires I removed. I expected the new setup to be a lighter but it was about 20% heavier, for each tire.
Also, the tires are about an inch bigger in diameter and in width. I expected the larger diameter, but not the extra width.


Awesome informative website, provided everything that I needed to make the right decision. I just came back from a 2700+ mile trip to fish the Kayak Bass Fishing National Championship and my kayak trailer tracked perfectly. At times I would forget it was back there. My order was confirmed and shipped within a short time and received in just a few days. I will be a return customer.


Looks great, tire has a higher load and speed range than the standard wheels added comfort and confidence in the trailer


Tires and rims look great on my little boat trailer. The tires are larger than my old ones that were in really bad shape and fit great. It really updates the look of a 20 year old trailer and sail boat!


Great looking Wheel and nice radial tire at a good price.


These tires were the perfect replacement for my old outdated cracked tires. The money I spent has eliminated my fear of a blow-out that was always on my mind with the old ones. Great service and rapid shipping; no complaints here!



From ordering, to shipment
tracking, to follow-up...everything went perfectly.

I was very happy to get a detailed processing flowchart and really fast delivery.

I'll be back to visit Etrailer again!


Very nice wheels and tires for my new t railer.


Finished product with wheels and tires purchased from etrailer. Extremely pleased with your products and service. Thank you.


Great customer service and got exactly what I ordered in a timely manner!


Arrived quick

Show More Reviews

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

  • Is Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel Sold Individually
    The Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel # AM31208HWTB that you referenced is sold individually. If you needed two of these you'd need to order a quantity of two.
    view full answer...
  • Kenda K25 ST145R12 Trailer Tire Weight Capacity and Tire Pressure Recommendation
    The Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel # AM31208HWTB will create a very bouncy ride with your motorcycle trailer. These tires are rated for 1,220lbs each so they are not going to flex under the weight of your trailer. Kenda recommends that these tires are inflated to a cold pressure of 65psi at all times regardless of load.
    view full answer...
  • Is the Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel Sold as a Set?
    The Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel # AM31208HWTB will contain one wheel and tire. If you are needing 2 wheels and tires change the quantity to 2 before you add to cart as we do not have a separate part number that has these being sold as a set.
    view full answer...
  • Wheel and Tire Combination Recommendation to Replace 155/80-12 Trailer Tire Size
    The closest available tire size to your 155/80R12 is the 145/80-12 tire size. The part # AM31208HWTB that you referenced has a 4 on 4 inch bolt pattern like you would need plus the correct tire size.
    view full answer...
  • Should Factory Bias-Ply Tires Be Replaced With Kenda # KR25 Radial Tires
    Yes, replacing your bias ply tires for Kenda KR25 # AM31208HWTB is a good move with regard to the safety of your cargo trailer and you on your motorcycle. As long as your radial tires are properly inflated, the radial tires will have improved traction and better tread wear which in turn will give you a more stable ride. The main difference between bias ply and radial tires is the construction of the tire and the usage applications. Bias ply tires have stiffer sidewalls and might be used...
    view full answer...
  • Trailer Tires Keep Blowing Out on a Boat Trailer
    Part # AM31208HWTB is our part number for the Kenda KR25 tire mounted on the HWT Aluminum wheel. There are several reasons why a trailer tire could fail. Since you mentioned the trailer is not overloaded we can rule that out. You also mentioned high speed trips. Few if any 12 inch trailer tires are rated for higher speeds than 65 miles per hour. The faster you go, the more heat is generated. Heat is the number one enemy of the tire. Trailer tires are also made with a thicker sidewall...
    view full answer...
  • Kenda KR25 Radial Trailer Tire 12" Aluminum Wheels Compared
    Correct, each of the options, the # AM31208HWTB, and the # AM31208 are same tire mounted on a different wheel design. The primary feature being that the # AM31208HWTB has a black interior feature and, an opening within the spoke that the other does not. Both have an offset of 0 and capacity of 1,220 lbs. Each wheel is a 4 on 4" bolt pattern, 12" diameter rim 4" wide with an 8 ply radial tire of 1,220-lb maximum load at 65 psi. This tire has a sped rating of 81mph.
    view full answer...
  • Nice Looking Wheel and Tire that is Wider than Tire Size 4.80-12
    For a wider and nicer looking wheel and tire to replace the 4.80-12 you have on your Seadoo Move 1 trailer you'd want the Kenda ST145R12 with Aluminum Wheel part # AM31206HWTB which comes with a really nice looking aluminum wheel that has the bolt pattern you need as well of 5 on 4-1/2 inch.
    view full answer...
  • Wheel and Tire Recommendation, ST145R12 Size with a 4 on 4 Bolt Pattern
    The only wheel and tire combinations we offer for the ST145R12 size and 4 on 4 inch bolt pattern you listed are on aluminum wheels and are not load range E. Check out the Kenda KR25 ST145R12 Radial Trailer Tire and Wheel # AM31208 and the Kenda KR25 Radial Trailer Tire and Wheel # AM31208HWTB. The Kenda Tire # AM10140 that you referenced is a load rang E, but we do not have a 4 on 4 inch wheel with the same capacity as most 4 on 4 inch hubs have capacities near 2,000 lbs. While these...
    view full answer...
  • What Is The Speed Rating Of Kenda KR25 Radial Trailer Tire W/ 12" Aluminum HWT Wheel AM31208HWTB
    The Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel # AM31208HWTB you mentioned has a speed rating of 81 mph and will work great at highway speeds. I included a video of the Kenda # AM31208HWTB for you to take a look at.
    view full answer...
  • Recommended Wheel/Tire with Highway Speed Rating for Seadoo Spark Trailer
    I do have an option for you though I'm not exactly sure of what size tires/wheels are on the trailer currently. That said, in order to obtain a higher speed rating you'll need at least an ST175/80R13. I recommend the Karrier ST175/80R13 Radial Trailer Tire with 13" Galvanized Wheel part # AM31994 which has a 5 on 4-1/2' bolt pattern with 81 mph speed rating. The wheel/tire measures 24.1" diameter x 7" wide so you'll need to make sure you have enough space for this new size.
    view full answer...
  • Recommended 12" Wheel and Tire For Sailboat Trailer With Speed Rating Over 80MPH
    I recommend the Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel # AM31208HWTB for what you are needing. You will need to take some measurements to ensure you will not have any clearance issues. This tire is 21.3" tall and 5.7" wide. Ideally you will want to have 1" of sidewall clearance along with 3" of vertical clearance to allow your suspension to travel. You can compare this with the dimensions on your current tire to verify if you will have any fitment issues. The tire...
    view full answer...
  • Center Cap Recommendation for the Kenda KR25 Radial Trailer Tire with HWT Black Wheel # AM31208HWTB
    I checked your order notes and it looks like you purchased the Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel # AM31208HWTB that has a pilot diameter of 2.80 inches. The only center cap we offer that would fit that pilot diameter is the part # AM90113. This cap does not have a removable center section though. Also the center caps that we offer that have the sticker on them are not what we ship to our customers. We put the sticker on the cap to help prevent...
    view full answer...
  • Replacement Wheel and Tire for 2003 Viking Epic 1706
    For a wheel and tire combo for your 2003 Viking Epic 1706 in the size of 4.80-12 the Kenda 4.80-12 on Aluminum Wheel part # AM30677 would work great.
    view full answer...
  • ST145/80-12 Wheel and Tire Recommendation for a 5.30-12 Wheel and Tire
    The Kenda Karrier ST145/R12 Radial Trailer Tire with 12" Black Mod Wheel # AM35354 will be about 1/2 an inch shorter than your current 5.30-12 tire so it that regard it would work perfectly fine. Now the included wheel is designed to attach to a 5 on 4-1/2 inch bolt pattern hub. If that is what your trailer has this wheel would work great. I attached a help article on determining bolt patterns for you to check out as well. If you had a 4 on 4 inch bolt pattern you would instead want the...
    view full answer...
  • 4.80-12 Trailer Tire and Wheel Recommendation for Tear Trailer
    For a high-quality trailer tire that is size 4.80-12 and wheel with a 4 on 4" bolt pattern I strongly recommend the Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel # AM31208, which is also available with different wheels, either # AM31208HWT for an Aluminum HWT Wheel or # AM31208HWTB for an Aluminum HWT Black Wheel. Each of these wheel and tire combos are load range D tires with a capacity of 1,220 lbs when inflated to their max 65 psi. Since you mentioned highway you will...
    view full answer...
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  • How to Determine if 145R12 Trailer Tire with 5 on 4-1/2 Bolt Pattern Fits Harbor Freight Trailer
    To answer your first question, radial tires are superior to bias tires because they run cooler and are less prone to blowouts. The only reason to run a bias tire is if you do a lot of agricultural or off-road work. In regard to fit, the Kenda S-Trail ST145R12 Radial Trailer Tire with 12" Galvanized Spoke Wheel - 5 on 4-1/2 - Load Range D # AM31202 might fit your Harbor Freight trailer, but there are a couple things you need to know first, starting with your trailer's bolt pattern. This...
    view full answer...
  • Can Trailer Wheel AM23318HWT Be Ordered With A Tire Mounted?
    I have another option for you, but unfortunately all of the wheel and tire combinations we offer are mounted by the manufacturer and we do not have the equipment in house to mount the tires. Instead you would need to get the Aluminum HWT Series S5 Trailer Wheel - 12" x 4" Rim - 4 on 4 # AM22318HWT you were looking at and the tire of your choice separately and have a local tire shop mount them for you. If the tire size you are looking for is 145R12 we do have the Kenda KR25 Radial Trailer...
    view full answer...
  • Recommended 4 x 4 Bolt Pattern Wheel And Tire For A Trailer
    The smallest 4 x 4 wheel and tire we carry is going to be a 145/80-12 tire size which would be 19.99" in overall diameter and a width (depth) of 5.71". We have a few styles of wheel rims to suit your tastes, which I've listed below: Kenda Karrier S-Trail ST145/R12 Radial Tire w/ 12" White Spoke Wheel - 4 on 4 - LR D # AM35351DX. Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel - 4 on 4 - Load Range D # AM31208HWTB. Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT...
    view full answer...
  • Is Load Range D Kenda Tire & Wheel AM31208HWTB OK For Camper With 2,390 GVWR
    Yes, your camper with a 2,390 lb GVWR will be okay along with the Kenda KR25 Radial Trailer Tire with 12" Aluminum HWT Black Wheel - 4 on 4 - Load Range D # AM31208HWTB. These tires have a capacity of 1,220 lbs when inflated at 65 psi, but that's per tire, so a total of 2,440 lbs, which is past your max GVWR, and that's exactly what you are looking for in a tire. You will just want to make sure your tires are fully inflated to the max 65 psi. The only other thing you will need if you...
    view full answer...
  • What Info is Needed to Determine if There's Hub that Can Fit Trailer Made in 1970s
    For a trailer as old as yours it's not likely we have hubs that will fit on your current spindles and only solution would be new axles but you can check. You would need to remove the hubs and measure the spindle diameter where the bearings and seal ride. With that info we can see if there's a modern hub that would allow you to mount the # AM31208HWTB. If you do find that you have to go with a new axle you would need the capacity, distance from hub face to hub face, and distance between...
    view full answer...
  • Replacing 4.80/4.00-8 Tires On A 4 Bolt Wheel On My 2012 Triton LXT Trailer With 12 Tires
    There are some things you will have to be aware of before you switch from 8" tires to 12" tires on your trailer. Going with bigger tires will decrease the clearance on your trailer. Your tires will be closer to the top of your wheel well. Your trailer's suspension might cause issues with your suspension travel. The extra height will also make your trailer more vulnerable to trailer sway. You will have to get tires and wheels to go with 12" tires. Your wheels have a rim width of 3-3/4"....
    view full answer...
  • Recommendation on Lug Nuts to Fit Aluminum Wheel and Tire Combo
    The Chrome Trailer Wheel Lug Nut, # 12CLN, will work well with the # AM32108HWTB that you purchased. This lug nut is 1/2 inch-20 threads per inch. These lug nuts are chrome to give a nice aesthetic look with your wheels and to help resist rust.
    view full answer...
  • Which Tire Comes on Kenda Tire and Wheel Combo # AM31208HWTB
    The tire that comes on the Kenda Tire and Wheel Combo # AM31208HWTB is the Kenda Karrier S-Trail ST145/R12 Tire, # AM10130.
    view full answer...

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