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Loadstar ST225/75D15 Bias Trailer Tire - Load Range D

Loadstar ST225/75D15 Bias Trailer Tire - Load Range D

Item # AM1ST96
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Shipping Weight: 26 lbs
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AM1ST96 - 225/75-15 Kenda Trailer Tires and Wheels
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Top-quality, bias trailer tire has been rigorously tested to ensure that it exceeds Department of Transportation standards. This tire fits 15" wheels; its maximum load is 2,540 lbs at 65 psi. Lowest Prices for the best trailer tires and wheels from Kenda. Loadstar ST225/75D15 Bias Trailer Tire - Load Range D part number AM1ST96 can be ordered online at or call 1-833-496-1390 for expert service.
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  • Reviews (2338)
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Kenda Trailer Tires and Wheels - AM1ST96

  • Tire Only
  • 15 Inch
  • 225/75-15
  • Load Range D
  • Bias Ply Tire
  • M - 81 mph
  • Kenda

Top-quality, bias trailer tire has been rigorously tested to ensure that it exceeds Department of Transportation standards. This tire fits 15" wheels; its maximum load is 2,540 lbs at 65 psi.


  • Flatter tread offers improved stability for excellent handling
  • Special trailer (ST) tire has sturdy sidewalls so that it can handle heavy loads
    • Created specifically for trailers - not intended for use on other vehicles
  • Advanced rubber compound
    • Longer tread wear
    • Low rolling resistance for smooth ride
  • Bias tire meets DOT requirements


  • Fits: 15" x 6", 15" x 6-1/2", and 15" x 7" rims
  • Tire size: ST225/75D15
    • Section width: 8.4"
    • Outer diameter: 28.1"
  • Capacity:
    • Load range: D
    • Ply rating: 8
    • Maximum load: 2,540 lbs at 65 psi
    • Maximum speed: 81 mph (speed rating M)
  • 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.

Bias Tires vs. Radial Tires

Bias vs. radial tire graphic

Bias ply tires are designed for off-road or agricultural applications. They are built with thick, durable nylon cords that are positioned at a 30- to 45-degree angle to the direction of travel. The layers alternate in a crisscross pattern, making the sidewalls stiffer so that the entire tire is able to flex easily. As a result, the tire provides a smooth ride and improved handling when trailering on uneven surfaces.

1ST96 Loadstar K550 Bias Tire - LR D

Customer Reviews

Loadstar ST225/75D15 Bias Trailer Tire - Load Range D - AM1ST96

Average Customer Rating:  4.8 out of 5 stars   (2338 Customer Reviews)

Top-quality, bias trailer tire has been rigorously tested to ensure that it exceeds Department of Transportation standards. This tire fits 15" wheels; its maximum load is 2,540 lbs at 65 psi.


I haven’t mounted them on my trailer but I’m concerned about quality control . Two are identical . The third seems to be narrower along the inside wall and won’t stand on its own like the other two .

Hi Gene, Thanks for your feedback! Sometimes tires will look skinnier after being stacked up in the warehouse. Once they are mounted and set at the correct air pressure it will perform as it should.
-- Etrailer Expert Tyler M - 03/24/2021


These tires are great. I replaced the car tires that were on my utility trailer when I bought it and the trailer seems to tow much better and can now handle the weight of a load of wood much easier with the stiffer sidewalls.
Had them mounted and balanced at a local tire shop which is most likely why the trailer tows better.
I would definitely go with these again.


Tires i needed were in stock. Good price. Confirmation email came immediately. Tires shipped quickly and were packaged well


AWESOME Tires, the only tires I use on all my personal vintage trailers as well as Client Restorations that come through our shop! Whether it is a fully restored museum piece or a trailer we are rescuing from cross country, these are the tires of our choice!!
(Photo 1951 Lighthouse Duplex 'TWO STORY' Trailer)


Tre was delivered on time as stated and was exactly as ordered. Thank you for your prompt service


outstanding price, very prompt delivery!


Good tire for the price point. I put them on a 20 yr old trailer. The rim was really nice for the price. I blew out a tire towing my ATV back from a hunting trip, which was why I ordered the tires and rim. Rim fits my old trailer good will be ordering another.

Fast shipping. I have ordered from E trailer in the past and they are very good. I got a 20K reese 5th wheel hitch and bed rails last time. I highly recommend them . My buddy uses them also for his boat trailer parts Ed


Fast shipping as always. Haven’t pulled the trailer yet with them, but all reviews on here suggested these tires are a dream


This is an excellent company and product. The tires were shipped ASAP and came as ordered in a couple of days. They look "outstanding" on my 1972 camper, priced very well and with great service!!

Thank you,



I bought a wheel and tire for a spare for my car trailer, could not ask for a better price or service and really fast shipping. Thanks etrailer.


Good piece of mind to have these heavy duty tires on my car carrying tandem. I overload it to haul my little dozer and these tires are mighty.


This tire came with my new trailer. It has outlasted all other brands of tires I have had on my trailers.

These tires last longer than other trailer tires I have put on my trailer. But still why do any of them have to wear out? :
CHAPIN - 05/15/2020



by: by far has the best customer service I have ever dealt with! As always my tires arrived just two days after I placed the order. Absolutely amazing! The value is incredible too. Best price I found and free shipping to boot! I will continue to make etrailer the first and only stop for all of my trailer needs.


High quality tire. Had it mounted to the new wheel. I now have a good spare for my trailer again. Great service from etrailer as usual. Thanks!


Ordered five trailer tires in load range D. I was excited to receive them promptly from etrailer through UPS and glad to report that etrailer was the only source that I could find to carry the desired quality of tire I was looking for. Thanks again to


I have used dias belted tires on my 31 ft travel trailer for several years. Have never had one single problem. In fact I plan to purchase more.


Excellent company and product. Tires were shipped ASAP and came as ordered. Received notice of shipment along with tracking number. I ordered on a Sunday and had them installed on the following Friday. The product is priced very well with GREAT service. I will definitely order again. Another example of great american service.


Product arrived quicker than i expected. Etrailer has great service all around. They care!


Trailer tires were what I needed . They arrived early . Thanks . Will use etrailer again .


I am very satisfied with my purchase. Fast shipping and fine quality at prices below industry standards.


Tires arrived as expected.. kept up to date on delivery .. easy ordering, great selection of products.. will continue to be repeat customer


Fast delivery and great packaging I will definitely order from trailer again


Easy on-line catalog...product delivered in just two days...great job, e-trailer!!


These tires have always been hard to find, locally. I found your site on Monday and tires were at my front door on Thursday. Very impressive. I'll be back.

Show More Reviews

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

  • What Size Wheels Work with ST225/75-15 Trailer Tires
    Trailer tire size ST225/75-15 will fit on 15x6, 15x6-1/2, or 15x7 inch wheels. The most common size and what we carry is a 15x6 inch wheel. These wheels come in several different bolt patterns. The most common is either a 5 on 4-1/2 or 6 on 5-1/2. I have linked an article that shows how to measure for bolt pattern. I have also linked all of the 15x6 inch wheels for you.
    view full answer...
  • Trailer Tire Wear on Right Side, Outside Tread Only and Trailer Pulls Hard to One Side
    If you have more of the weight in the trailer on the left side then that could explain the uneven wear. Axles have a bow or camber in the middle. When weight is in the trailer it straightens out the axle some and the tires should wear evenly. When there is not enough weight the camber causes the tires to toe in at the bottom which would lead to outside tread wear. If you do not believe this is the issue then it is possible that the suspension is worn more on the right side or it could...
    view full answer...
  • What is the Speed Rating of Kenda ST225/75-15 Trailer Tires and are Radials Rated for Higher Speeds
    The trailer tires that we carry including # AM1ST96 are rated for up to 65 miles per hour. Bias ply tires and radials are rated the same. If anything a radial would have a higher speed rating because they track better and run cooler than bias ply tires. But it doesn't matter in this case because both types are rated for a maximum of 65 miles per hour.
    view full answer...
  • Explanation for Trailer Tire Tread that is Convex Rather Than Flat
    I consulted with our resident tire expert, and we're both at a loss. Heat build-up caused by over or under inflation, overloading the tire or failing to observe the speed rating of the tire (65mph in most cases) are the typical causes of premature tire failure. When you describe the tires as being 'rounded', I'm assuming that you mean that the tread portion of the tire is convex, rather than being flat so it makes full contact with the pavement. Over-inflation usually causes this, but...
    view full answer...
  • Troubleshooting Trailer Tire Wear on Outer Tread
    The first and easiest thing to check is to make sure the tire is inflated properly. If the tire is under-inflated, the sides of the tire tread will wear quickly. The recommended psi should be listed on the sidewall of the tire. It is odd that your tire is wearing on the outer portion of the tread. When abnormal tire wear is a problem, it is more common on the center tread or inner tread caused by over inflation and overloading. If your tires are inflated properly or you continue to have...
    view full answer...
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  • Troubleshooting Trailer Tires Wearing Out on the Outside Treads
    The wear is going to be the same with a bias tire or with a radial tire so changing out the style will not help with what is causing the wear. If the tires were over inflated, the center treads would wear. Under inflated tires would show wear on the inside and outside treads. If the wear is just on the outside then the tire is riding at a slight angle with the bottom pointed more in toward the trailer than the top. You will need to check the suspension components, axles, spindles, to make...
    view full answer...
  • Causes of Trailer Tires Wearing In Center On My Triple Dexter Axle Car Hauler
    If any of the components were bent or damaged there is a chance that the bent parts could be causing the irregular tire wear that you are seeing. If a component was bent you would usually see tire wear on the inside or the outside of the tire depending on which way the part is bent. More than likely the tire wear is being caused by the amount of air in the tires. If the tires are over inflated, then typically you would see more wear in the center of the tires. If the tires are under inflated,...
    view full answer...
  • Will Higher Temperatures In a Desert Affect Maximum Tire Pressure in Trailer Tires
    Regarding tire inflation, trailer tires are built to withstand a lot of abuse. Lower air pressure is more of a problem than higher air pressure. A trailer tire can handle being slightly over-inflated better than being under-inflated, especially if the trailer that the tires are on is loaded to the maximum. The rule of thumb on tire pressure change due to air temperature is 1 psi for every 10 degrees (Fahrenheit) in temperature change. In most parts of the United States the difference between...
    view full answer...
  • How Many Plies are in an 8 Ply Rated Bias Trailer Tire 225/75D15 # AM1ST96
    Sometimes the number of plies is indicated on the tire sidewall. in this case, the only ply information that is on this tire is that it has an 8 ply rating and that they are nylon. because of the strength of today's materials, there may not be 8 plies. This is because the materials used today can carry more weight and less plies are needed. The ply count does not actually matter. You want to go by the load capacity of a tire. For # AM1ST96 the capacity is 2,540 pounds at 65 psi. Trailer...
    view full answer...
  • Compatibility of Tire Size ST225/75R15 on Rims That Now Have Tire Size ST225/70R15
    Yes, the tire size ST225/75R15 will fit just fine on your horse trailer rims that currently have tire size ST225/70R15. The width of these two tires is the same - 225 millimeters - and so is their wheel diameter of 15-inches. The difference between them is their sidewall aspect ratio, also known as their section height. This height will be greater on the ST225/75R15. Overall tire diameter for a ST225/75R15 tire will be approximately 28.4-inches while your ST225/70R15 tires' overall diameter...
    view full answer...
  • Is LoadStar ST225/75D15 Bias Trailer Tire a Tubeless Tire
    Good question; the Loadstar ST225/75D15 Bias Trailer Tire - Load Range D # AM1ST96 is a tubeless tire, and that is the norm for trailer tires now. Bias tires don't require a tube, and even though some people still use them, we do not recommend it because it can cause the tire to overheat if towed at any type of speed. You've made a smart choice with the Loadstar, which are highly rated tired by our customers, as you can see by the outstanding rating in the customer reviews section on...
    view full answer...
  • At What Age Should Trailer Tires be Replaced
    Trailer tires really shouldn't be used after 6 years of age. The materials of the tire just breaks down to the point they become compromised and will eventually fail. In nearly every situation the treads will still be seemingly good and it's age that wears them out before the tread is gone. Tire covers to protect them from the sun like what you can see at the attached link is a great way to help keep them in good shape.
    view full answer...
  • What Might Cause Outside of Trailer Tires to Wear Out Quickly
    It's not uncommon for what you are experiencing to be related to axle alignment issues or even a bent axle. I'd recommend having a shop who can do trailer alignments check out the trailer to see if they can find an issue before replacing the tires. Since the outside of the tires are wearing out I would guess the axle may be bent forward.
    view full answer...
  • Size Difference Between Tire Sizes 215/75-15 and 225/75-15
    The difference between those two sizes is the 215/75-15 is 10 mm narrower and .6 of an inch shorter than the 225/75R15 size. Typically the larger sizes will have higher weight capacities as well.
    view full answer...
  • What Should Trailer Tires Be Inflated To and When
    The trick with trailer tires is to inflate them to the max psi figure listed on the sidewall when they are cold and you are good. You do not need to anticipate pressure increasing from heat as this figure has already considered that. So first thing in the morning (or before you tow the trailer for the day) check to make sure that your tires have 80 psi and you'll be good. Also be sure not to exceed the speed and weight ratings on the tire! I attached a help article on trailer tires for...
    view full answer...
  • Recommended Tire Pressure for ST225/75-15 Trailer Tires
    Trailer tires should be kept inflated to the maximum pressure listed on the tire sidewall, as opposed to passenger vehicle tires that will have a certain acceptable range. If a trailer tire is inflated to a lower air pressure than the recommended maximum, the amount of weight that the tire can carry will be lowered. If a heavier load is put on the trailer tire than what is recommended for that air pressure, the sidewall of the tire could heat up and cause the tire to fail. I'll link you...
    view full answer...
  • Can 6-Ply Tires Be Used On Travel Trailer With 8-Ply Tires
    You will always want to use tires that have a capacity that is best suited for your trailer. It is always recommended to use tires that are the same size, have the same load range and construction on a trailer. If tires that are not matched, you could have problems like overheating and overloading which can lead to tire failure. You always want to make sure you inflate the tires when cold to the maximum psi for the best performance. I have attached a helpful article about tires and...
    view full answer...
  • How Do Trailer Tire Weight Capacities Work
    Tires like the part # AM1ST96 that have a 2,540 lbs at 65 psi are rated per tire. So if you had a tandem axle trailer you would multiply 2,540 by 4 to get the total trailer tire capacity that you would have. You should note that to get the full capacity of the tire it will need to be inflated to it's max psi rating.
    view full answer...
  • Troubleshooting Trailer Tire Tread Wear on the Outside of the Tire
    It sounds like you need to replace the tire on your trailer that has become rounded. If the shape of a tire becomes distorted or warped like you described it could fail at any moment and needs to be replaced. If what you are describing is just the tread wear then you have different problem most likely. Under inflated tires would show wear on the inside and outside treads. You should note that trailer tires should always be inflated to the max psi rating that is listed on the sidewall...
    view full answer...
  • What is Correct PSI Inflation Pressure for Special Trailer Tires
    All special trailer tires regardless of size should always be inflated to the maximum psi pressure rating that is noted on the tire sidewall. It is never appropriate to under- or over-inflate a trailer tire since only when inflated to their rated pressure can tires deliver their specified weight capacity. It sounds like your trailer may have had a different size, type or weight rating tire originally specified by the manufacturer and this could be why the trailer itself lists a recommended...
    view full answer...
  • Best Tire Pressure to Fill a Standard Trailer Tire
    Special trailer tires should be inflated to their maximum air pressure. This value will designate the maximum load at a maximum psi. For example, if the tire is rated at 2,540 lbs maximum at 65 psi, like the # AM1ST96 you were looking at, the tire can carry 2,540 lbs of weight if the air pressure is at the maximum of 65 psi. At the maximum air pressure, the tires will perform and wear best, and have the best gas mileage. If a trailer tire is inflated to a lower air pressure than the...
    view full answer...
  • How to Determine the Date a Trailer Tire was Manufactured
    To determine the date any trailer tire was made, including the Loadstar ST225/75D15 Bias Trailer Tire # AM1ST96 you only need to find the date code. There will be a four-digit code on the sidewall of the tire and the first two numbers are the week of the year it was made and the last two will be the year. For example if you see a code that reads 2918 that means the tire was made in the 29th week of 2018. That said, tires do not wear out from age for anywhere from five to seven years...
    view full answer...
  • What Tire Pressure Should Trailer Tires be Kept At
    Always go by what's on the sidewall of the trailer as the amount of tire pressure to use when the tire is cold. This will ensure you get the full capacity of the tires and prevent heat build up. The other thing you need to consider is the max speed rating for the tire. You need to stay under what the speed rating is too as that will cause excess heat too. It's normal to see some pressure increases on the highway but as long as you are under the weight capacity for the tire, at the max pressure,...
    view full answer...
  • Can Trailer Tires Spin in Either Direction
    Yes, radial trailer tires can spin in either direction. They are not directional. I attached an FAQ article on trailer tires for you to check out as well.
    view full answer...

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