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Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel - 4 on 4 - Load Range D

Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel - 4 on 4 - Load Range D

Item # AM31208
Our Price: $158.89
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 features a 4 on 4 bolt pattern and is corrosion resistant. Great Prices for the best trailer tires and wheels from Kenda. Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel - 4 on 4 - Load Range D part number AM31208 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Kenda Trailer Tires and Wheels - AM31208

  • 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 features a 4 on 4 bolt pattern and is corrosion resistant.


Features:

  • 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 "star" spoke pattern
  • Tire-and-wheel assembly meets Department of Transportation specifications


Specs:

  • 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"


31208 Star Mag 12" Aluminum Wheel and Karrier KR25 Radial Tire - LR D





Customer Satisfaction Score:


Customer Reviews

Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel - 4 on 4 - Load Range D - AM31208

Average Customer Rating:  4.9 out of 5 stars   (1036 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 features a 4 on 4 bolt pattern and is corrosion resistant.

by:

Swapped out the steelies and low speed tires the trailer came with for the lighter aluminum wheels with higher speed tires. They tow great behind the sidecar and look a treat.

Ian

2/9/2024

Wheels and tires are great, alittle taller and wider that the original trailer steelies so they ride the bumps better. Took out a couple of leaves on the springs which also helps given total trailer weight loaded is only about 350lbs.



by:

Had them for a year, 2-3k miles. They have been great! Solid to 110mph, handle well, the wheels still look sharp.



by:

I received my order and one wheel is four hole and one is five hole. I ordered four hole wheels.

Etrailer Expert

Jenny N.

3/8/2024

I apologize for the mistake on our part. Customer Service will be in touch with you so that we can have the correct wheel shipped out.



by:

Tires and rims look awesome. Just wish they weren’t already a year old when I got them. They need a better way to keep stock newer



by:

I get a lot of comments from my fellow sailors now that I fitted these rims to my boat trailer. For me they weigh less than galvanized and never rust. The fact that they look great is a bonus. Took the trailer from California to Texas and back and the tires still look good.



by:

excellent service and back up on your products. there was a small hickup on the order and you made the correction the same day I called. couldn't be more pleased with the service and support.



by:

Excellent customer service. Aluminum wheels and new radial tires from etrailer are improved look and quality for the Bunkhouse camper.



by:

There was a mistake made but they corrected it right away.... Rims and tires look good



by:

Great quality and quick delivery. The 12” standard wheels that came with the trailer weren’t adequate and these replaced them well.



by:

These wheels and tire look like they will do the job, but i will not be able to try them on a long trip till spring, but they do look very nice.



by:

Great looking wheels! I would absolutely buy these again. Dresses up my restored Gator trailer.



by:

Order arrived fast and look great. With zero miles on them yet, I can't review further.



by:

Purchased a tire and wheel package to replace same, on a motorcycle towed trailer. My tires arrived already mounted on the wheels, making for a very simple swap out on the trailer. Thank you e-trailer for a painless shopping experience. I have no doubt that the radial tires will track and wear much better than the old two ply tires.



by:

I was very impressed with the informational videos to help make the decision and immediate follow up to my order. Furthermore a direct follow up with order from a live person. She was helpful and very willing to make sure everything is perfect. Fast shipping and was surprised how quickly it got here. On arrival everything is perfect. Thanks so much. I will be using you guys again! Can’t wait to pull my used trailer with the new wheels and tires!



by:

Great product



by:

Tires and rims are great. Customer service helped me in selecting the right tires. Couldn’t be more happy! Great products and great customer service. Will be back for sure.

Patrick

8/23/2022

Tires have worked out great ! Super happy!



by:

They arrived on time and in a very good shipping box. I am very pleased with my first purchase from etrailer.com. I talked with Jesse M. and he was very helpful. I will continue to shop etrailer.com for all my next purchases.



by:

Fantastic purchase. The wheels are exactly what I hoped for. The tire seems to be very good quality as well.



by:

Great looking wheels with nice tires!



by:

Hello Steve, Thanks for all you help. The lug nuts I called about were actually 12mm x 1.25. Les Schwab was able to verify the size. So close to the 1/2 x 20 that they would go on, but did not feel right. Again thanks for your help, I am happy with the wheels and tires and appreciate the time you spent hrlping me out.



by:

I ordered the Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel to replace the 12 x 5.30" tires that were on my tent trailer. I received the new wheels VERY fast, in only three days time and was very pleased. The tires are approx. 1/4" smaller in diameter than the ones they replaced, but since they have a flatter tread profile it is hardly noticeable. the tires are slightly wider than the ones they replaced, and the tread is a flat profile, like that of a car tire. The rims appear to be of high quality as do the tires. I am one happy camper!



by:

Stickers on the front of rims are very difficult to remove. There is no way to remove them without using a scouring material, even after soaking area numerous times since delivery. No very happy having to spend more than 2 hours trying to make brand new tires and wheels, right out of the box, presentable. Didn’t anybody realize that putting stickers that say “how to remove stickers” would be unnecessary IF STICKERS WERE NOT PUT ONE IN THE FIRST PLACE!



by:

We Americans love good looking wheels and tires. They can usually make or break the look of a vehicle. These rims are beautifully crafted and appear to be of good quality. Time will tell..
I'm trying a D range Radial trailer tire for the first time. With a couple of cross country trips planned for this summer, I'm hoping that they will run cooler and longer than the bias tires which seem to age very quickly.



by:

These tires are as advertised and the wheels are also excellent. Excellent value, excellent quality. Additionally, when you call this merchant with a question they have an incredibly responsive customer service department, who bend over backwards to help you. Just an all around great business. With my two boat trailers and RV I will be back here exclusively in the future.
Thanks etrailer... Tow thumbs WAY UP!!!



by:

Stylish rims and radial trailer tires for the price of bias-ply. Awesome!!!
These tires provide a higher load range and a smoother ride.
Ordered on a Monday and delivered to California on that Thursday!
Very satisfied.


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Show More Reviews

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

  • Can ST145R12 Tires Replace 5.30-12 Tires On Jayco Pop-Up Camper?
    Yes. The Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel - 4 on 4 - Load Range D # AM31208 you were looking at will replace the 5.30-12 tires on your Jayco Pop-Up camper since the ST145R12 is only 1/4" wider and just over 1/2" shorter than your current tires. The # AM31208 has a wheel with the 4 on 4" bolt pattern, so if this matches the bolt pattern on your Jayco this would be a great replacement. If your Jayco has the more popular 5 on 4-1/2" bolt pattern then I recommend...
    view full answer...
  • Recommended Tire To Replace ST155/80D13 Tires That Is The Same Size Or Slightly Smaller
    You are correct, the closest tire size to the 155/80D13 tires on your boat trailer is going to be the ST145/R12 which will be about 1-1/2" shorter and 1/2" narrower overall. Since this tire uses a different size wheel you will need to order new wheels as well. To make sure you order the correct wheels you will need to measure the bolt pattern of your current wheels following the included help article. If you find you have the common 5 on 4-1/2" bolt pattern then I recommend the Kenda...
    view full answer...
  • Is Kenda ST145/R12 Load Range D Radial Tire Available Mounted on Wheel
    It does indeed! We offer several Load Range D Kenda ST145/R12 Radial tires mounted on wheels. If you need a wheel with a 4 on 4 bolt pattern, we offer: • # AM35351DX which is mounted on a standard white powder coated steel wheel • # AM31208HWT which is mounted on a sliver aluminum split spoke wheel • # AM31208HWTB which is on a black/silver aluminum split spoke wheel • # AM31208 which is on an aluminum star spoke pattern wheel If you need a 5 on 4-1/2 bolt pattern, we have: • # AM35354...
    view full answer...
  • 12 Inch Trailer Tires And Wheel With 4 On 4 Bolt Pattern
    The 12 inch tire/wheel combos we offer with a 4 on 4 bolt pattern are part # AM31208, and part # AM31208HWT. Both of these combos use tires that have a load range D and are 145/80-12. The Karrier S-Trail ST145/R12 Radial Trailer Tire, part # AM10140, is a load range E tire and has a capacity of 1,520 lbs at 80 psi. The Americana Steel Spoke Trailer Wheel, part # AM20122, has a 4 on 4 bolt pattern and has a capacity of 1,250 lbs at 90 psi. These 2 items are sold as separate items only....
    view full answer...
  • Lug Nuts Recommended To Fit Kenda 12 Aluminum Wheel
    You are correct that a longer lug nut is often needed vs a regular lug nut switching to this Kenda Tire # AM31208. There isn't enough space on a regular length lug nut for a tool to get a good grip. The Americana Trailer Wheel Lug Nut - 3/4" Diameter - Stainless Steel - 1/2" - 20 Item # AM26NR is my lug nut recommendation for these tires. You can also use Chrome Trailer Wheel Lug Nut - 1/2" Item # 12CLN. Both of these are are 1-1/4 inch long vs. your 1/2 inch current set so the additional...
    view full answer...
  • What Is the Backspacing of the Kenda KR25 ST145R12 Radial Trailer Tire with 12 Inch Aluminum Wheel
    The Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel part # AM31208 has a 0 offset so the backspacing is half the width of the wheel plus the width of the bed seat so around 2-1/4" is the backspacing.
    view full answer...
  • Would Bearing Buddy BB2047SS Fit Trailer Wheel AM31208
    Bearing Buddies aren't normally picked out based on wheel size since they fit into the trailer hub bore, but the diameter of the Bearing Buddy # BB2047SS is compatible with the trailer wheel part # AM31208. The diameter of the Bearing Buddy is 2.047 and the center hole diameter of the wheel is 2.80 inches.
    view full answer...
  • Wheel And Tire Combination For A Marine Trailer
    A 155/80/12 is a typical size rating for a motor vehicle tire and not a trailer tire. A trailer tire comparable to the 155/80/12 would be a 145/80/12. As far as a wheel and tire combination, I recommend the Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel - 4 on 4 - Load Range D Item # AM31208. The 145/80/12 is only going to have about 1/2" difference in height from a 155/80/12 and it is going to be a little skinnier. Since the suspension on a trailer is mounted different...
    view full answer...
  • Availability of a ST145/R12 Trailer Tire and Galvanized Wheel Combo
    We offer many wheel/tire combos in size ST145/R12, see link, but none on a galvanized wheel. Of the wheel/tire combos that we offer the part # AM31208 is compatible with the bolt pattern specified on the Dexstar Steel Spoke Trailer Wheel, part # AM20124 you mentioned. The tire and wheel combos we receive are already mounted on rims from the manufacturer. Currently we do not have a machine to mount the tires to rims when these parts are purchased individually. If you buy the Kenda Karrier...
    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...
  • How To Upgrade to 12 Inch Wheels/Tires On a Sealion SK-10-800 PWC Trailer
    Yes, you can upgrade to 12" wheels/tires on your Sealion SK-10-800 PWC Trailer without replacing the axle. For this, I recommend the Kenda Karrier S-Trail ST145/R12 Radial Tire part # AM31202 if you have 5-bolt wheels or the Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel part # AM31208 if you have 4-bolt wheels. In regards to your fenders, I cannot recommend you modify them although I am sure this is possible but best option would be to just replace them with the CE Smith...
    view full answer...
  • Lug Nut Torque for 16 Inch Trailer Wheel w/ 1/2 inch Wheel Studs
    For a 16 inch steel wheel with 1/2 inch wheel studs, 90-120 ft-lb is recommended. For a 16 inch aluminum wheels, 90-100 ft-lb is what you should use. Be sure to recheck the torque frequently.
    view full answer...
  • What is the Trailer Tire Metric Equivalent to a 4.80 x 12 Trailer Tire
    The closest metric trailer tire size to a 4.80x12 is going to be a 145/80-12. The typical diameter of a 4.80x12 tire is 20.5 inches. On a 145/80-12, it is 21.3 inches. So the metric size will be a little over 1/4 inch taller. Make sure to measure the clearance around the tire to make sure it will fit. These two different sizes fit a 4 inch rim, but have different load capacities. The metric tire has higher capacities. You will still need to make sure you stay within the limits of the trailer...
    view full answer...
  • Will # AM3S130 Tire/Wheel Combo Fit 1966 Aristocrat Lo-Liner Trailer
    Since there can be several different options for tires and wheels on a trailer from one year to the next, you will want to make sure you select the right tire/wheel combo for your trailer. The customer you referred to has not replied about their setup. If you have 10 inch diameter brake hubs you would need part # AM3S130. This tire/wheel combo measures 24 inches diameter with a width of 6.6 inches, with a 4 on 4 bolt pattern. For a brake hub that measures less than 8-1/2 inches diameter...
    view full answer...
  • Replacement Wheel and Tire for 1999 Flagstaff 208 With 4.80-12 Tires
    Based on what I have found, it looks like the Kenda 4.80-12 Bias Trailer Tire with 12" White Wheel # AM30620 is a direct replacement for your 1999 Flagstaff 208. It has a 4 on 4 bolt pattern and a maximum load of 990 lbs at 90 psi. If you need a 5 on 4-1/2 bolt pattern you can use the # AM30660 instead. If you have the clearance I would recommend switching to radial tires like the # AM35351DX (4 on 4) or # AM31199DX (5 on 4-1/2). These have automotive grade tread and will hold up better...
    view full answer...
  • What Is Weight Difference In Kenda 4.8-12 AM30620 and Kenda ST145R12 AM31208 Combinations
    The Kenda 4.80-12 Bias Trailer Tire # AM30620 you currently have weighs 19lbs, where the Kenda KR25 ST145R12 # AM31208 you were interested in weigh in at 23lbs. The larger ST145R12 tire is a heavier which makes the overall wheel and tire a few lbs heavier than your current setup.
    view full answer...
  • What Should 1/2 Inch Lug Nuts on a Trailer Tire be Torqued To
    For a 1/2 inch lug nut which is what is used on the Kenda KR25 ST145R12 Radial Trailer Tire with 12 inch Aluminum Wheel, # AM31208, you will torque then down to 75-85 foot pounds.
    view full answer...
  • 12 inch Wheel and Tire Combo with 4 Bolt Pattern and Higher Speed Rating
    We have a 12 inch tire and wheel combo that has a 4 on 4 bolt pattern like you need with an 81 mph speed rating with the part # AM31208. The tire size is ST145R12 which would still work for you. We don't have either size you mentioned with the higher speed rating.
    view full answer...
  • Radial Trailer Tire and Wheel with Speed Rating Higher Than 65 MPH
    You didn't say the tire size you need but you looked at a 145/80-12 size tire. We have similar sizes with a higher speed rating but all of our 145/80-12 size tires have a 65 mph speed rating. Instead, take a look at a 5.30-12 or a 4.80-12 size tire. The former is about a half inch larger in diameter and the latter is about an inch smaller. You also didn't specify a wheel type or bolt pattern. The one you asked from was a 4 on 4 bolt pattern. All of our tire and wheel combos of those...
    view full answer...
  • Speed Rating of Kenda KR25 ST145R12 Radial Trailer Tire
    I had the # AM31208 pulled from our warehouse and yes it does have an M speed rating so it's rated for up to 81 MPH.
    view full answer...
  • Weight of Kenda KR25 ST145/80R12 Tire and Wheel Combo # AM31208
    The Kenda KR25 ST145/80R12 Radial Trailer Tire with 12" Aluminum Wheel # AM31208 that you referenced has a combined weight of just about 23 pounds for the tire and wheel. I have attached a short video review below that you can check out as well.
    view full answer...
  • Recommended Replacement Tire For 10 Inch Wheels On Utility Trailer
    It sounds like you need a tire that can handle all terrains including off-road areas. I recommend Kenda KR25 ST145R12 Radial Trailer Tire w/12 inch Aluminum Wheel Item # AM31208. This tire and wheel combination has a section width of 5.7 inches and an outer diameter when inflated of 21.3 inches. It fits a 4 on 4 inch bolt pattern and has a maximum load capacity of 1220-lbs at 65 psi. To make sure this option will work for you, you will need at least 3-4 inches between the tire tread...
    view full answer...
  • Recommended 2000lb Axle For Harbor Freight Trailer
    I would be happy to help you find the correct replacement axle for your harbor freight trailer. The CE Smith U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4" Long U-Bolts - Zinc # CE23000, 4-Leaf Slipper Spring w/ Radius End for 2,000-lb Trailer Axles - 24-5/8" Long # SP-179275, Kenda KR25 ST145R12 Radial Trailer Tire with 12" Aluminum Wheel - 4 on 4 - Load Range D # AM31208, and Dexter Trailer Axle with Idler Hubs - 4 on 4 Bolt Pattern - 60" Long - 2,000 lbs # 20440I-ST-60 are...
    view full answer...
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  • What Type of Valve Stem Does The Kenda Tire and Wheel # AM31208 Have
    I contacted our representative at Americana Tire about the valve stem on the Kenda Tires and Wheel, part # AM31208. The representative informed me that there is a regular valve stem on the Kenda Tire and Wheel # AM31208. She informed me that they have not had any customers have issues with the valve stems. The valve stem installed is sufficient to hold the air pressure of 65 PSI, which is the maximum PSI for the tire. With ST trailer tires, you want to make sure to have the tires inflated...
    view full answer...


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