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Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E

Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E

Item # AM10140
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Our Price: $101.81
Trailer Tires and Wheels
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AM10140 - Load Range E Kenda Trailer Tires and Wheels
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Product Images

Customer Photos

Videos

Product Expert Mary E

Is this right for you? Product Expert Mary E says:

Yes, if you:

  • Need a higher weight capacity to support your heavy camping gear
  • Often tow long distances on the highway on the way to the campsite
  • Frequently tow a trailer on wet or icy roads

No, if you:

  • Speed while towing on the highway
Radial special trailer tire with automotive-grade tread has a ply rating of 10 and a 1,520-lb max load at 80 psi. Designed for highway use. Constructed of double steel belts and full nylon plies. Fits 12" wheels. Lowest Prices for the best trailer tires and wheels from Kenda. Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E part number AM10140 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (1085)
  • Q & A (163)
  • Photos
  • Why etrailer?

Kenda Trailer Tires and Wheels - AM10140

  • Tire Only
  • 12 Inch
  • 145/80-12
  • Load Range E
  • Radial Tire
  • Kenda
  • K - 65 mph

Radial special trailer tire with automotive-grade tread has a ply rating of 10 and a 1,520-lb max load at 80 psi. Designed for highway use. Constructed of double steel belts and full nylon plies. Fits 12" wheels.


Features:

  • Radial ply tire is great for highway use
  • Constructed with double steel belts and full nylon plies for superior function and long life
    • Premium rubber compound materials help disperse heat
  • Automotive-grade, computer-generated tread has sipes that channel water away from the tire to improve traction during wet, snowy, or icy conditions
  • Special trailer (ST) tire has sturdy sidewalls so that it can handle heavy loads
    • Created specifically for trailers and not intended for use on other vehicles
  • Meets DOT specifications


Specs:

  • Fits: 12" x 4" rims
  • Tire size: ST145/R12
    • Section width: 5.7"
    • Outer diameter (when inflated): 21.3"
  • Capacity:
    • Load range: E
    • Ply rating: 10
    • Maximum load: 1,520 lbs at 80 psi
  • Maximum speed: 65 mph
  • 5-Year limited warranty
  • 1-Year worry-free guarantee


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.


Karrier S-Trail Radials with Automotive-Grade Tread

Kenda Karrier S-Trail Tread Vs Standard Tread

Unlike standard trailer tire tread, which has solid, continuous ribs, the automotive-grade, computer-generated tread on these Karrier S-Trail radials has ribs with breaks. These breaks allow water to run off to the sides. The Karrier S-Trail tread also has sipes. Siping is a process in which thin grooves (or sipes) are cut into the rubber of the tire. The grooves channel water away from the tread so that the tire makes better contact with the road. Both of these features greatly improve traction during wet, snowy, or icy conditions.


Karrier S-Trail radials are constructed with double steel belts and full nylon plies for increased durability and endurance. The premium rubber compound materials of this tire help disperse heat.


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.



10140 Kenda Karrier KR25 S-Trail ST145/R12 Radial Tire - LR E






Customer Reviews

Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E - AM10140

Average Customer Rating:  4.8 out of 5 stars   (1083 Customer Reviews)

Radial special trailer tire with automotive-grade tread has a ply rating of 10 and a 1,520-lb max load at 80 psi. Designed for highway use. Constructed of double steel belts and full nylon plies. Fits 12" wheels.

- AM10140
by:

Got the new tires and had them mounted up. Im glad etrailer had a better small tire for my 5x8 trailer. Ive Had other tire shops tell me 4 or 6ply was the only ply available for the small trailer i had and the farm stores only offered the 4 or 6 ply tire. Etrailer had 10 ply,radial tires for my need that is rated up to 65 mph on the highway and im very happy. Living on a gravel road, and using the small trailer on the farm i would have flat tires all the time with the old weaker 6 ply tires it came with and they wouldnt last very Long if used them on the pavement.


Comments
Still going strong. No flats and tread wear is still doing great also. Id say theres only about 1000 miles on them as i dont use the trailer every day but i did use it on my farm where the other tires wouldnt last long before getting a flat from a cut off tree stump or thorns. I will buy again when needed and have told plenty other people about the tires and where to get them.
James - 09/07/2019



- AM10140
by:

I needed a quality set of tires for my 1959 Lil Loafer camper trailer, the only tires I could find at any tire shop local to me were bias ply and nothing over a load range D. So needless to say those would wear out real fast and not track very will. These Kenda radials will fill the need perfectly. A load range E 10 ply rating will give me the confidence I need when hitting the road. I had them mounted at a local tire shop and took it out for a test run and they sure help the little trailer track nice. Great tire for a little vintage trailer. Delivery was fast as well, less than a week. The price is fair with the exception of the Canadian exchange on the US dollar. And the website works smooth for orders, I'll be back for other stuff for sure.


Comments
The tires are performing very well. We have a longer trip planned this summer so that will give them a good run, but I’m sure they will be great.
Doug K - 05/29/2018



- AM10140
by:

Etrailer is the best, knowable staff, very professional, tires where sent on time. I will purchase more products from them in the near future.



- AM10140
by:

I just received the tires today and haven't had them mounted yet so all I can is they look great. Summer before last, we took our pop up camper out West through 18 states in about 60 days. All of our camping up that point had been around Florida where we live, so no long road trips. On our out West trip we had 4 blowouts on our little pop up camper and since we were on the road, we would pick up tire/wheel assemblies from Wal-Mart or Harbor Freight. Did not really know what else to do. Experience has taught us better and that's why I ordered these load range E, 65 mph, 10 ply rating tires. The proof is in the pudding as they say, so in the fall, we will find out how good these tires are and I will write a full review then.


Comments
Very happy with these tires. Took another long trip last year, Florida to Maine, back home, then to Alabama, Ga and home. Towed 65 mph. No tire problems at all. What a relief!
Joseph - 04/04/2020



- AM10140
by:

This is the second pair of these ST 145/12 radial I have purchased for my vintage 1959 Lil Loafer trailer. After taking the first pair on a couple of short trips I realized I did not have a radial spare, only my old bias ply tires. Since I don't want to mix radial and bias I figured I should buy another pair for spares, (in spite of the exchange rate on the Canadian dollar and the cost of shipping to Canada). Still loving these tires in comparison to the bias ply, we are planning a longer trip still this year so that will be a good test. Oh, I even reused the packaging to protect my bench top while repacking the bearings.



- AM10140
by:

There was a bit of a hiccup in service, I ordered a tire that was apparently not in stock. I was sent an email suggesting another tire but it took me several days of not seeing any change in the order process. Can’t remember what their site was saying but nothign was happening. SO I looked at the one email that was sent and discovered it was out of stock. They need to revise the system to report that issue when ordering. Otherwise, once The product was received it was sent and arrived within a few days.



- AM10140
by:

Second time i have ordered these tires. Excellent customer service!! Shipped out right, at my doorstep a day early. Thank you etrailer!!



- AM10140
by:

Be careful ordering tires and rims from this company, I received my order as three separate pieces, the tire was not mounted to the rim. If there was a place to specify that I wanted them pre-mounted it was not easy to find on their website. Next time I am going to my local [farm store].


Comments
Thank you for your review. We do not mount any tires but we do have options available that come pre-mounted. I have attached some of your size:
-- Etrailer Expert Sierra K - 06/08/2021


- AM10140
by:

Wheels look great. Excellent packaging.



- AM10140
by:

The quality is obvious. Heavier than regular tires and they run very smoothly. No vibration at speed.



- AM10140
by:

I was looking for hard to find trailer tires- -E Load range- -and etrailer was the only location They could be found. They are expeditious in getting the orders out and packaging was great to protect them. Thanks, etrailer. . .I'll be back again to order for future needs!



- AM10140
by:

Nice tires for my popup camper! Fast shipping , great service



- AM10140
by:

The Kenda st145/r12 D loads I got last time worked great, the popup trailer seemed to handle better than with the bias plys. I will be checking tire pressure more often from now on though, had one tire loose pressure down to 50lbs and go bad but didn't blow. Replaced both tires because they were 5 yrs old but tread wear was minimal. I push the speed rating, went with E loads this time.



- AM10140
by:

Excellent tires. Absolutely no issues! thanks for a great product.



- AM10140
by:

First time with etrailer, product was delivered timely and the tires were manufactured less than a year of date which means they have not been sitting on the shelf for years. I will use the company again.



- AM10140
by:

Ordered a set of Kenda ST145R12 Radials and the transaction went perfect. Notifications and overall communication was great. Product was perfectly packaged to survive the shipping animals. Very happy with the transaction. Highly recommend.



- AM10140
by:

Exactly what I needed. Shipped quickly. Love etrailer



- AM10140
by:

Great company, great service and delivery was earlier than expected. Good product too - thank you e-trailer.



- AM10140
by:

We bought a 2004 Coleman Taos Pop-up. It is in great shape but we went ahead to replace the tires and repack the wheel bearings. The trailer pulls so smoothly, partly because of the radial tires. The team at etrailer are awesome at helping sort out the best options for pretty much everything trailer-related. As newbie camper owners, we appreciate your help!



- AM10140
by:

Needed to replace the tires on my ACME EZ Car Tow dolly, the 12 inch E Load tires are not carried in stock at my normal tire store. ACME trailers did not have any tires available and they suggested I try E trailer for assistance. GLAD I DID, excellent service, I purchased two 12 inch Load Range E tires, and a 2 ton bottle jack. The order arrived ahead of the scheduled date and in excellent condition. I will definitely use this company again.



- AM10140
by:

Here's the real deal! I purchased two of these tires, mounted on galvanized rims in 2017. They were mounted on a modified boat trailer that hauls our Hobie Cat as well as a wood storage box with various Totes and an Avon Inflatable as well. Crossing a scale the trailer axle weighs a little over 1300lbs. We haul this rig from Canada to Baja Mexico every year, a round trip of about 8,000Kms. Some of the roads are pretty bad. Lots of potholes! When new these tires tread depth measure 7/32. after two round trips to Mexico the depth is 5/32. No flats, no unusual wear and they run quite cool (at 65psi). I just bought two more for the next trip down (July 2019) and I'll keep the older ones for spares.. . . I expect I'll never need them! If you're looking for a heavy duty 12 inch trailer tire this is the best one that I've found. I've tried other brands of 12 inch trailer tires, some only lasted a few thousand kilometers. One thing though. . . Have them installed with high pressure truck valve stems, not the rubber automobile ones, they will handle the pressure and temperature better. Did I mention they were the Real Deal! Thanks etrailer!



- AM10140
by:

Reliable trailer tire. I get about 10k pulling a mini cooper on an Acme Tow dolly. Trick is rotating them to get the maximum wear since the tire on the outside of the lane by the shoulder always wears faster since the roadway is generally rougher on the outside.



- AM10140
by:

I am very happy with the tire performance and wear. I used them on a utility trailer and have hauled wood etc. without problems. The previous tires wore out in a couple of years, so far these are holding up well. Thanks


Comments
They are still performing great, show very little wear. Very happy with these tires. Thanks
Tim - 11/16/2018



- AM10140
by:

Just what I was looking for. We have a commercial Pool business and have trailers with 12 inch tires. The tires that come with the trailers are narrow without much tread depth and wear very fast. The replacement tires I found locally are cheap and come with wheel included do not last very long either. These tires are wider, meaning the tread is as wide as the tire and being radials they should last longer. I was going to change to 13 inch tires but that meant changing fenders or are least moving them and they would have not been wide enough. Got them fast. Very happy with Etrailer.



- AM10140
by:

Great service..thanks


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Ask the Experts about this Kenda Trailer Tires and Wheels

  • Boat Trailer Tire Options, ST145/R12
    There are two tire options available for the size tire you identified, ST145/R12, both are the Kenda Karrier brand. The first option is a load range E, # AM10140, this is has a ply rating of 10 an a 1,520-lb max load at 80 psi. We also have the # AM10130, this has a ply rating of 8 and a 1,220-lb max load at 65 psi. Each of these 5 on 4-1/2 options are also available already mounted on either painted white spoke wheels # AM31199DX, aluminum # AM31208, or galvanized # AM31202.
    view full answer...
  • Tire Replacement for My 2020 Rockwood Freedom Popup Camper
    The Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire part # AM10140 is the closest tire in that size that we offer. It's speed rating is 65 MPH. That is the highest speed rating on this size tire I have been able to find. I really like these because of the increased weight capacity of 1,520 lbs. for the total of 3,040 lbs. The other option is the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire part # AM10130 with the same speed rating and a 1,220 lbs per tire capacity for a total...
    view full answer...
  • Is Kenda Karrier S-Trail ST145/R12 Available Mounted on Wheel with 4 on 4" Bolt Pattern
    While we do carry the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E (1,520 lbs at 80 psi per tire) # AM10140, we unfortunately don't have this specific tire pre-mounted to a wheel that has a 4 on 4" bolt pattern. Since all of the 12" wheels that have a 4 on 4" bolt pattern have lower weight capacities (1,250 lbs at the most) I recommend checking out the Kenda Karrier S-Trail ST145/R12 Radial Tire Load Range D (1,220 lbs at 65 psi) w/ 12" White Spoke Wheel # AM35351DX....
    view full answer...
  • What is Widest Trailer Tire Size to Replace 5.30-12 Tire Size
    The widest tire size that fits a 12 inch trailer wheel is the 145R12 which would be .2 of an inch wider than the 5.30-12 you have now. For that we have the # AM10140 which would work great.
    view full answer...
  • Recommended Replacement 145/R12 Tires for Pop-Up Camper
    The Kenda Karrier # AM10140 145/R12 tire you'd looked at would be the highest rated 12 inch tire we offer. The tire has a 1520 lb per tire/3040 lb/ axle capacity which would be perfect for your pop-up. The tire is compatible with 12 x 4 inch rims, so if that's what you currently have they'll work great for you. I've linked to a product description video featuring my buddy Cole who runs through the features of the tire.
    view full answer...
  • Is Larger Load Range Tire Okay for 1992 Coleman Trailer
    Yes, you can use a larger load range tire, like a load range E tire on your 1992 Coleman trailer, so long as the tire fits your current wheel and you have enough clearance (3" from the top of the tire to the fender and 1" from the inside of the tire to your frame rail). For example, if you have 12" wheels and your trailer uses ST145/12 tires, you can swap to the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E # AM10140. If you don't have 12" wheels you will also...
    view full answer...
  • Replacement 4.80-12 Tires and Spare Tire with Wheel for Trailer with 4 on 4 inch Bolt Pattern
    The 4 on 4 bolt pattern is still very common so you don't need to upgrade unless you really want to. They are readily available many places so you don't need to be restricted by one brick and mortar store. I recommend staying with your current tires size or going with the metric equivalent. The Kenda 4.80-12 Bias Trailer Tire with 12" White Wheel - 4 on 4 - Load Range C # AM30620 is a great option and is rated for a max speed of 65 mph. If you want to go faster, the Taskmaster 4.80-12...
    view full answer...
  • Will Kenda ST145/R12 Fit on Same Rim as 4.80-12 Tire
    Both tire sizes you mentioned are designed to fit a 12 inch diameter wheel that is 4 inches wide so yes, the part # AM10140 that you referenced would work well for you.
    view full answer...
  • Recommended Replacement Tires for Boat Trailer with 165/70-12 Tires
    For your boat trailer, I recommend using a 145/80-12 to replace the 165/70-12 tires that you have on your trailer now. This new size will only be slightly narrower and about the same diameter as the tires you have now so there will be no fit issues with this new size. I recommend the Kenda Karrier S-Trail part # AM10140 which has a radial ply so it will be great for highway trips and it has a two year warranty. As long as your trailer/boat does not weigh more than 1,520 lbs multiplied...
    view full answer...
  • Trailer Tire Recommendation Wider than 4.8-12
    We don't really have any off-road tires but we do have tires that will fit your rim size and will be about an inch wider which may help with the mud. For that we have the size 145/80-12 like the part # AM10140.
    view full answer...
  • Can 4.80-12 Tire be Replaced with ST145/R12 Tire Using the Same Wheel
    Yes, the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire # AM10140 referenced in your question will fit the same 12 inch wheel with a 4 inch width that your existing 4.80-12 size tires are mounted to. Just note that the ST145/R12 tire will be about 0.8 inches larger in diameter, so you will want to make sure you have the necessary clearance on your trailer for the slightly larger tire size. This Kenda radial ply tire is going to provide an excellent upgrade over your existing set....
    view full answer...
  • Can I Use a Tire With a Bigger Load Rating Than What is Needed for My 2006 Jayco Camper
    Most of the wear on tires is from miles that are put on it from traveling and bumps. Even if weight is making a difference, it wouldn't be very noticeable. What is basically boils down to is how well you treat your tires and how nice the roads are that you are driving on. With that being said, there is no harm in using a higher load rating than the Kenda Karrier S-Trail # AM10130 which is a Load Range D for your 2006 Jayco Pop-Up Camper. The Kenda Karrier S-Trail # AM10140 which has...
    view full answer...
  • Highest Speed Rated Radial Trailer Tire Size 145/R12
    The closest we have to what you're looking for is a 145/R12 size tire, Load Range E rated for up to 1,520 pounds at 80 psi, but its speed rating is only 65 mph. It's the only Load Range E tire we have at that size and we don't have any for a 13 inch rim. Another option that may work for you is tire # TT53012C. It's a 5.30R12 size which is about a 1/2 inch skinnier and a 1/*4 inch larger in diameter. It does have an 81 mph speed rating however it's only rated for 1,050 pounds as a...
    view full answer...
  • Do All Trailer Tires of the Same Size and Load Range have the Same Weight Capacity
    Different makes of tires of the same size and load range can have different weight capacities. So your tire's information is accurate for that tire. There isn't a universal weight capacity for any given tire size for all manufacturers across the board. If the capacity is fine for your trailer then you have nothing to worry about. But if you want to have tires rated for 2,540 pounds at 65 psi then I recommend switching to # TTWSF22515D.
    view full answer...
  • What is the Speed Rating for Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire
    The trailer tires we carry are rated for 65 miles per hour at most. Traveling 80 miles an hour will produce too much heat for a trailer tire. The problem is that trailer tires are made with a thicker side wall than passenger vehicle tires. This means that they can get hotter faster and going over the rated speed will lead to excessive heat build up. Excessive heat build-up in a tire can lead to diminished tread life and tire failure. Radial tires dissipate heat better but are still rated...
    view full answer...
  • Recommended Radial Tires To Replace 5.30x12 Tires On 1976 Popup Camper
    For the replacement tires on your 1976 popup camper, I recommend the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E # AM10140. These will be a slightly wider and shorter than your current tires, but will mount to the same wheels. They have a width of 5.7 inches and overall diameter of 21.3, which isn't a very noticeable difference. These tires have automotive grade tread and are rated for 1520 lbs at 80 psi.
    view full answer...
  • What is Weight Capacity of Kenda Karrier S-Trail ST145/R12 # AM10140
    Our tires like the part # AM10140 are rated per tire. So this tire has a capacity of 1,520 lbs at 80 psi. If you used this tire on a single axle you'd then have a total tire capacity of 3,040 lbs. I also attached a review video for this you to check out as well.
    view full answer...
  • Will 145/80-12 Trailer Tires Fit the Same Wheels as 5.30-12 Trailer Tires
    Trailer tires in sizes 5.30-12 and 145/60-12 (such as # AM10140) both fit the same size wheels so you could use them. Trailer tire # AM10140 is rated for 1,520 pounds at 80 psi. Please note that higher capacity trailer tires will not increase the capacity of the trailer. Both sizes are basically the same height and width with the 145 being slightly shorter. There should not be any clearance issues so there is no reason not to switch to the 145 size. I have included a couple of helpful...
    view full answer...
  • Replacement Trailer Tires for 2013 Jayco 1007 Popup Camper
    I have a solution for you, but we do not have any 12 inch, 4 lug tire and wheel combos that will allow you to exceed the GVWR of your pop-up camper. The only 12 inch trailer tire we offer that will allow you to exceed your trailer's GVWR is the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire # AM10140. This tire offers a weight capacity of 1,520 pounds at 80 psi. Since I am not sure what size tires your camper currently has, the # AM10140 tires may be larger than the existing...
    view full answer...
  • Tire Recommendation for Trailer with Tire Size 145R12
    We have the tire size 145R12 by itself. For that you would want the part # AM10140. I attached a review video for this tire for you to check out as well. If you happened to need it on a rim with a 5 on 4-1/2 inch bolt pattern you'd want the part # AM31202 or for a 4 lug solution part # AM35351DX.
    view full answer...
    Image 1 for
  • Can Trailer With ST145/R12 Tires be Upgraded to 13 Inch Tires
    We have ST145/R12 trailer tires with a load range E, the Kenda Karrier S-Trail # AM10140. If you wanted to go to a larger tire and wheel you could do so but you would need to ensure you have the needed clearance of about three inches from your trailer tire to rim and four inches to your trailer frame. A 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...
    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...
  • Looking for 4.80-12 Tires for Jet Ski Trailer
    Actually, 4.80-12 tires are still manufactured and we carry them. We sell the tires only, or the wheel/tire combo with the tire mounted on a wheel with a 4 on 4 bolt pattern or a 5 on 4-1/2 inch bolt pattern. If you click the link I provided, you can see our available tires and wheel/tire combos in that size. If you're getting a wheel/tire, be sure to choose the wheel that matches the bolt pattern of your existing wheels. I'll link you to an FAQ article that shows how to determine your...
    view full answer...
  • Widest Trailer Tire Size to Fit on 12 inch Trailer Wheel
    The widest tire size that fits a 12 inch wheel is the 145/80-12 like the part # AM10140 which has a section width of 5.7 inches. This will be right at an inch wider than what you currently have.
    view full answer...
  • Do 4.80 x 12 Size Tires Fit the Same Rim as 145/80-12 Size Tires
    Your current 4.80 x 12 tires and the Kenda 145/R12 tires, part # AM10140, both fit on a 4 inch rim so you can use your same rims. However, you want to makes sure you have clearance for the larger tires since they're over half an inch taller and more than 3/4 of an inch wider. You want 3 to 4 inches from the tire tread to the fenders and at least 1 inch between the sidewall and the closest part of the trailer.
    view full answer...
  • 145/R12 Load Range E Trailer Tire and Aluminum Wheel with 4 on 4 Bolt Pattern
    There are so many possible tire and wheel combinations that manufacturers have chosen to provide only the most common set ups. But a local tire shop will be able to mount a tire on a wheel for a nominal fee. For a 145/R12 Load Range E tire we have # AM10140. For 12 inch aluminum wheels with 4 on 4 bolt pattern there are a few options: # AM22318HWT # AM22318HWTB I have linked videos for each of the wheels and the tire for you.
    view full answer...
  • Wider Tire Recommendation to Replace 4.80-12 Tire Size
    The widest tire we offer that will fit the same rim as your 4.80-12 tires is going to be a ST145/R12 tire like part # AM10140 which has a section width of 5.7 inches. Overall diameter would be increased by less than an inch. This will give you a tire that is .8 inches wider.
    view full answer...
  • Kenda Karrier S-Trail ST155/R12 Compatibility With 12x4.5 Inch Wheel
    I reached out to the manufacturer and the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E # AM10140 will fit a 4.5 inch wide rim, however it may change the load capacity as the tire may be stronger than the wheel. If you have a heavy load you are carrying, you may want to have a 12x4 inch rim. We do have some pre-mounted options for that tire: Kenda Karrier S-Trail ST145/R12 Radial Tire w/ 12" Aluminum Wheel - 5 on 4-1/2 - Load Range E # AM31215 Kenda Karrier...
    view full answer...
  • How to Choose the Best Tires, Wheels and Axle for a Homemade Jet Ski Trailer
    Finding the ideal tires, wheels and axles for your trailer will depend heavily on the overall weight of the trailer. For example, a jet-ski can weigh as little as 400-500 lbs on the light end and around 1,000 lbs on the heavy end. You must also consider the weight of the trailer itself sitting on the axles. Also, keep in mind that if the axle is positioned properly, the tongue of the trailer should hold about 10 percent of the total weight. For example, let's assume that your jet-skis...
    view full answer...
    Image 1 for
  • Is The Maximum Load Rating Listed For A Single Tire Or Pair
    Yes, that is correct the Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range E part # AM10140 load capacity is per tire inflated to the recommended max PSI. However, some trailer tire manufacturers have a load capacity per pair of tires. This particular tire is rated 1,520 lbs at 80 psi per tire.
    view full answer...

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  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate trailer tires and wheel information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    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.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
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Michael H
Employee Jeff D
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Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee John H
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John H
Employee Adam R
Expert Research:
Adam R
Employee Laura H
Updated by:
Laura H
Employee Mary E
Updated by:
Mary E
Employee Isabelle B
Updated by:
Isabelle B
Employee Cole B
Installed by:
Cole B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.