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  1. Trailer Tires and Wheels
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Loadstar ST215/75D14 Bias Trailer Tire - Load Range C

Loadstar ST215/75D14 Bias Trailer Tire - Load Range C

Item # AM1ST90
Our Price: $93.70
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Trailer Tires and Wheels
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Shipping Weight: 21 lbs
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Kenda Tire Only - AM1ST90
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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 14" wheels; its maximum load is 1,870 lbs at 50 psi. Great Prices for the best trailer tires and wheels from Kenda. Loadstar ST215/75D14 Bias Trailer Tire - Load Range C part number AM1ST90 can be ordered online at or call 1-800-940-8924 for expert service.
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Kenda Trailer Tires and Wheels - AM1ST90

  • Tire Only
  • 14 Inch
  • 215/75-14
  • Load Range C
  • Bias Ply Tire
  • Kenda

Top-quality, bias trailer tire has been rigorously tested to ensure that it exceeds Department of Transportation standards. This tire fits 14" wheels; its maximum load is 1,870 lbs at 50 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 and 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: 14" x 5-1/2", 14" x 6", 14" x 6-1/2", and 14" x 7" wheels
  • Tire size: ST215/75D14
    • Section width: 8.4"
    • Outer diameter: 26.3"
  • Capacity:
    • Load range: C
    • Ply rating: 6
    • Maximum load: 1,870 lbs at 50 psi
  • 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.

1ST90 Loadstar K550 Bias Tire - LR C

Customer Satisfaction Score:

Customer Reviews

Loadstar ST215/75D14 Bias Trailer Tire - Load Range C - AM1ST90

Average Customer Rating:  4.8 out of 5 stars   (2655 Customer Reviews)

Top-quality, bias trailer tire has been rigorously tested to ensure that it exceeds Department of Transportation standards. This tire fits 14" wheels; its maximum load is 1,870 lbs at 50 psi.


etrailer was able to my fears to rest on the Bias tires I purchased. All the items I ordered were received a day ahead of schedule. The packaging was great. Two things that might be noted 1) the box with multiple items should be marked on the out side. Those of us that don't receive boxes often don't know that the box with the packing list is the box with all the parts. 2) The company might add a note on the Bias tire page on what the receive may see when the box is opened. In my case deformed or what appears to be crushed tires. What a surprise to see Bias Tires. Customer service cleared my concerns up quickly. These tires along with all the other parts will be used on my "Car Trailer" project.


Prompt and early delivery and personalized communication keeping me informed, I will continue to purchase my tires from etrailer, highly recommended and appreciated.


I've been very pleased with etrailer. We decided to winter our boat on a trailer at home instead of paying for storage. Finding an appropriate trailer and refurbishing it has worked well with their help. We added a surge coupler, brakes, tires, rims, lights and wiring, and changed from bunks to stands and an extra cross member.


Great customer service. Right after I placed the order I was contacted with additional options for what I was looking for. The order arrived just as promised. Very happy with the products and the personal attention. I will definitely go back to etrailer for more parts.


Tires are great. Came in short timeframe
Awesome product


As expected. Great price


Very good seller!! Super fast shipping!! Very Detailed tracking information.


I needed a good spare and the price was right


Tires arrived slightly deformed from shipping. Caused a delay in the mounting time.


The shipping as usually was Great. Quick and efficient. I ordered these tires without the rims since I already have the rims on my boat trailer. These tires came flattened and shaped like a cereal bowl ( dished ). There was also some weird scaring on the side. I couldn't get any local shops to touch them. Then I tried Wal Mart. They did it for 10 bucks each. So in the end this worked out pretty good. I also tried to locate the scars after they were mounted and couldn't find them,


My review has more to do with the service so its fine if you don't want to publish it. The website is great. I first went to two major tire places trying to buy trailer tires and their computer systems were not able show any options at all because the aspect ratio was not printed on the old tires and they could not simply search by rim size. Your site easily gave me plenty of options for 14" and probably ended up being a better value. Tires shipped free, quick, and were boxed. I have ordered performance car tires elsewhere and they came in ripped shrinkwrap so I was pretty impressed with this service.


The tires I purchased were the perfect match for the trailer. Exactly what I needed! I have not had any issues with them. E-trailer was fast and efficient, and made my purchase easy. And gave me the best prices, with no shipping charges! I can't recommend them highly enough.


Very good tires for a very good price!


Tires were better than expected.


received tires as advertised. had them mounted, balanced, good to go.

Great, its nice to have tires that do not bounce with loaded trailer.
Kevin - 07/25/2019


Tires were poor quality and would not even balance properly. Ended up using it as a spare tire

Trailer tires do not have to be balanced like passenger car tires do since a trailer tires primary duty is supporting a vertical load. You certainly can have your trailer tires fully balanced if you wish, but this is not essential.
-- Etrailer Expert Heather A - 10/20/2018


Was very happy. And also fast shipping. Tires and wheels were boxed separately ( instead of banding the tires together) which was nice. Thank you


Awesome service arrived sooner than expected, Great Price Exact, product, Very satisfied. definitely will purchase from etrailer again.


I received my tires in a timely matter. I ordered five altogether I order new tires every seven years from etrailer the quality is great the price is great and are always delivered when they say.


I made a mistake when purchasing my order contacted their Service team issue was dealt with immediately and shipment proceeded on time.I would highly recommend buying products from the E trailer especially when their service team being this good


Recieved my trailer tires on time.Thank you very much. Looks like some good tires. Good value.Steve Sacramento CA.


Had to return because I ordered the wrong item, e-trailer has great Customer Service, easy return with UPS no problems!


I have ordered tires before and have always been satisfied. Good quality and fast delivery!


Tires were shipped in boxes and arrived in excellent condition.

These tires are working great! I use roads that arent exactly straight and these tires hold the road very well. The tires are very quiet.
BA F - 05/07/2014



Excellent No Problems
Excellent N - 03/30/2021

Show More Reviews

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

  • Bias Trailer Tires vs Radial Trailer Tires
    The main difference between a radial ply and bias ply tire is how the tire is constructed. The cords underneath the tire are run in different directions. On a bias tire, the cords run at a 32 degree angle from the direction of travel and on a radial tire, the cords will run at 90 degrees from direction of travel, or across the tire from wheel lip to wheel lip. Because of the construction of a radial tire, the tire has more flex and will allow for more ground contact. That will improve...
    view full answer...
  • How Many Years is a Trailer Tire Good For Regardless of Wear
    As a general rule of thumb, trailer tires should be replaced every 6 to 8 years regardless of wear. Even though an older tire might appear to have plenty of tread left on it, dry rot and cracking can cause tire failure. If your current tire size is a ST215/75D14 the part # AM1ST90 would work great as a replacement.
    view full answer...
  • Recommended 275/75-14 Size Tires for Travel Trailer Highway and Off-Road Use
    For your application I recommend going with the Loadstar ST215/75D14 Bias Trailer Tire # AM1ST90. This comes with a load range of C (1,870 lbs at 50 psi) and a speed rating of M which means it is rated for up to 81 mph. Bias tires are better for off-road use than radial tires because bias have a sidewall that is more stiff.
    view full answer...
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  • Is a 215/75-14 Trailer Tire Taller than a 205/75-15 Trailer Tire
    I think you might be talking about diameter but yes, a 215/75-14 trailer tire will have a slightly larger circumference than a 205/75-14 tire. Specifically, the 205 will have a circumference of about 82.582 inches whereas the 2015 will have a circumference of about 83.838 inches. The diameter of the 205 is 26.3 inches and for the 215 the diameter is 26.7 inches. That is 0.4 inches of difference meaning that it would raise the height of the trailer by 0.2 inches. Trailer tires should...
    view full answer...
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  • We Keep Blowing Out Tires. Should We Go Up From A 6 Ply To An 8 Ply?
    My recommended first step for you to take is to determine what tire size you would need. If you check the plate on the trailer frame near the coupler there will the VIN, axle capacities, as well as the trailer tire size and Load Range recommended. Compare those specifications to the tires you currently have, if you don't have that recommended size and load range, those should be the tires you purchase. The load range of a tire will be the capacity you need, and you can choose between bias...
    view full answer...
  • What PSI Should Kenda Loadstar ST215/75-14 Size Tires be Run
    The size 215/75-14 Kenda Loadstar bias tire K550 is our part # AM1ST90. It has a maximum capacity of 1,870 pounds each at 50 psi. Trailer tires should always be inflated to their maximum psi when they're cold. These tires have plenty of capacity for your 1,300 kilogram (About 2,866 pound) boat. As long as the trailer's weight doesn't put you over. I've also linked an article on trailer tires for some more information you might find helpful.
    view full answer...
  • Can a Radial Tire Be Used On One Side and a Non-Radial On the Other Side Of a Trailer
    You will need to use the same ply tire on all sides of the trailer whether that be radial or bias(non-radial). If you were to use two different plies you could have two completely different tire temperatures and even pressures which would put you at risk of a blowout. The actual material used in the constriction of the belts in the tire (nylon or steel) does not really matter but ideally you want both tires to be the same brand/model as well. I have attached a list of our trailer tires...
    view full answer...
  • What Is the Difference Between ST215/75D14 And ST705/75D14 Tires
    If you change from a tire like part # AM1ST90 which is a ST215/75D14 tire to a tire like part # AM1ST86 which is an ST205/75D14, the tire will be about 1/2 inch narrower and 1/2 inch smaller diameter. Both tires will perform well if they are properly inflated and if the trailer is properly and evenly loaded. Most trailer tires have a 65 mph speed rating. Exceeding this speed can cause heat to build up in the tire reducing the lifespan of the tire.
    view full answer...
  • Can 205/75D14 Tire Be Used As Spare For A 215/75D14 Tire On Boat Trailer?
    If a 205/75D14 like the Loadstar # AM1ST86 was the only thing you had to get you off the side of the road it would work for a vert short distance, but you would not want to use it long. The reason for this is it will be just under 1" shorter than the 215/75D14 tires you currently have. Having a shorter tire on one side will cause the trailer to sit uneven and will put additional weight on the shorter side which is not ideal. Instead I recommend getting the Loadstar ST215/75D14 # AM1ST90...
    view full answer...
  • What are the Correct Size Tires for the Dexstar Vintage Steel Trailer Wheels in 14 inch
    The Dexstar Vintage Steel Wheel is a 5-1/2 inch wide wheel and will accept 14-inch bias ply trailer tires, in ST205/75D14 and ST215/75D14. In the ST205/75D14 tire size we have the, # AM1ST86, load range C. In the ST215/75D14 tire size there is one load range C tire available in bias ply, # AM1ST90. I provided a link to our Trailer Tire Sizing chart for you to review also. In the Chart you can compare all of the tire sizes, diameters, load ranges and appropriate rim widths, to match your...
    view full answer...
  • Can Radial and Bias Tire Types be Used Simultaneously on a Boat Trailer
    We do not advise mixing bias ply and radial ply tires on any vehicle. Each type of tire has a unique cord construction under the tread layer that gives each one different ride characteristics. Bias tires use cords that run on a 32 degree angle to the direction of rotation. Radial tires use cords that run on a 90-degree angle to the direction of rotation. Bias ply tires have a stiffer sidewall and are generally more durable and suited to off-road use, while radial tires are more flexible...
    view full answer...
  • Difference Between Bias Ply Tires # AM1ST90 and Radial Ply Tires # AM10234
    The difference in tires that have either a D or an R in the tire size description is that a D indicates a bias ply tire, and an R would mean it is a radial ply tire. Examples of each type are ST215/75D14, part # AM1ST90, and ST215/75R14, part # AM10234. The difference in the construction of the tires is that the cords underneath the tread run in different directions. On a bias ply tire, the cords run at a 32 degree angle from the direction of travel. On a radial ply tire, the cords will...
    view full answer...
  • What is the Modern Equivalent of an 8.55-14 Trailer Tire on a 1977 Volunteer Camper Traielr
    I believe your tires use the old Inch size rating that was used in the 1960s and 1970s. I believe it is an 8.55-14. You will need to measure your tire to be sure. The 14 would indicate that the tires are on 14 inch wheels. The width should be about 8-1/2 inches wide. The closest modern tire is going to be a 215/75-14 like # AM1ST90. This tire sits on 14 by 6 inch wheels, has a width of 8.4 inches and an outer diameter of 26.3 inches. If his matches your existing tires, then the Loadstar...
    view full answer...
  • Looking for 15 x 5 Replacement Dexstar Wheel and Tire for Spare
    We offer a 15x5 white painted trailer wheel with a 5 on 5 bolt pattern, part # AM20428, which sounds like what you are looking for. The wheel is indeed manufactured by Dexstar. If you would care to reply with the tire size and load rating information that you can find on your tire sidewall, I would be happy to suggest a tire to go along with the wheel.
    view full answer...
  • Replacement 215/75-14 Trailer Tires for a Dual Axle Boat Trailer
    Radial trailer tires are going to give you the best ride and they run cooler than bias ply tires so I recommend going with radials. For tire size 215/75-14 you would need radial tire # AM10229. It is rated for 1,870 pounds at 50 psi so 4 of them would have more than enough capacity for a 5,400 pound gross trailer weight. Trailer tires should always be inflated to the maximum psi as indicated on the tire. The reason for this is that trailer tires have a thicker side wall than car tires....
    view full answer...
  • Can a ST215/75R14 Tire and a ST215/75D14 Tires be Used at the Same Time
    Using a Bias ST215/75D14, like part # AM1ST90, and Radial ST215/75R14, like part # AM10229, tire at the same time on your trailer should only be done if there were an emergency. Since there is a difference in how those types of tires run, wear, and cool, you could end up having an uneven ride or tire failure. The ideal setup is to have all bias tires or all radial tires. That is the best way to stay safe and know that you will get the most life out of each tire.
    view full answer...
  • How Do I Find My Correct Tire For My Shasta Starflyte Camper
    The fact that you have "ST Tires" means you definitely have a trailer tire. Those tires will be labeled ST before the tire size to designate a special trailer tire. This will mean the tire is designed with stronger sidewalls to handle the extra loads that a trailer/camper will put on the tire. As a result you may have the correct sized tires. In regards to tire clearance, the minimum distance between the inside of a tire and the frame rail depends a lot on the setup of the trailer. But...
    view full answer...
  • Availability of Replacement Tire For Size F65-14ST on Tow Master Boat Trailer
    The replacement for the F65-14ST tire you mentioned would be a ST205/65-14, which is kind of an oddball size that we don't carry. The closest equivalent we carry would be 205/75-14. The tire you currently have is 24.6 inches in diameter, and 7.4 inch section width. The ST205/75-14 is 26.3 inches in diameter and 7.8 inches wide which is about a 1/2 inch wider and 1.7 inches larger in diameter. We have the 205/75-14 available in a bias-ply or a radial tire. The radial is available in a...
    view full answer...
  • What is the Difference Between a Bias Ply Tire and a Radial Tire and Can I Tell Date of Manufacture
    The D14 will not fit your wheel if you currently have an R15 tire. That means your wheel is a 15 inch wheel and a D14 or R14 tire will fit a 14 inch wheel. The difference between a bias ply and a radial tire is the way the rubber is layered. A bias ply is layered around the tire, and a radial tire is layered from sidewall to sidewall with steel belting. A radial tire will be more stable and will yield better ride quality. Currently we do not have a 215/75-15 size tire. We do have a 225/75-15...
    view full answer...
  • Replacement Wheel and Tire Recommendation for a 1998 Nitro Trailer
    For a 14 inch rim with a 5 on 4.5 inch bolt pattern similar to the one you referenced you would want the part # AM20304. For a tire in the size you have to use as a spare you would want the part # AM1ST90. The pilot diameter of the wheel I referenced is 2.62 inches. This shouldn't matter as long as your wheel is attached with lug nuts and not wheel bolts.
    view full answer...
  • What Aluminum Trailer Rim Sizes Will Accept a 215/74-14 Trailer Tire
    If you look at just a 215/75-14 trailer tire, like # AM1ST90 or # AM10229, they will fit on a 14 x 6 inch rim. According to our resident tire expert, the smallest rim you could use with this tire size would be a 14 x 5-1/2 inch. All of the 14 x 5-1/2 inch aluminum wheels we carry have a 5 on 4-1/2 inch bolt pattern. So you can use the 215/75-14 on a 14 x 5-1/2 or 14 x 6 inch trailer wheel.
    view full answer...
  • ST Tire Specs For F65-14 and Compatibility Recommendation
    The F65-14 tire is the ST205/65D14 tire and the closest we have is the 205/75-14 size you referenced. That tire is 26.3 inches diameter and 8.1 inches wide. My recommendation for that size tire is the Karrier ST205/75R14 Radial Trailer Tire - Load Range D # AM10235. This tire is rated for 2,200 lbs at 75 psi and speeds up to 81 mph. I've attached a video to assist. This may require adjusting your fenders as you stated. If you need smaller tires you will need to drop to 13 inch...
    view full answer...
  • Wheel and Tire Recommendation with Tire Diameter Right Under 24.5 inches
    For a tire size that fits right under your diameter max of 24-1/2 inches you would need to go with the size 185/80-13 since they are right at 24.4 inches. For wheel and tires in that size we that fit your bolt pattern we have the part # AM3S339.
    view full answer...

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