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

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

Part Number: AM1ST90
In Stock
$114.55
Trailer Tires and Wheels
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etrailer Installation
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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 etrailer.com or call 1-800-940-8924 for expert service.
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Kenda Trailer Tires and Wheels - AM1ST90

Highlights

  • Confident Load Handling: Supports up to 1,870 lbs at 50 psi for steady towing under heavy weight.
  • Keeps You Rolling Smooth: Flatter tread design improves stability and handling on the road.
  • Built to Last: Advanced rubber compound gives longer tread life with low rolling resistance.
  • Handles Rough Terrain: Bias-ply build with tough nylon cords flexes easily on uneven surfaces.
  • Ready for the Long Haul: Meets DOT requirements and includes a 5-year limited warranty.
  • Peace of Mind: 1-year worry-free guarantee replaces the tire if damaged in the first year.

Features to know about

Built for Heavy Loads with Confidence: Load Range C, 1,870 lbs at 50 psi

When you’re hauling serious weight, you need a tire that’s proven to handle it safely. The Kenda Loadstar ST215/75D14 Bias Trailer Tire packs a 6-ply rating with a maximum load of 1,870 lbs at 50 psi. It’s built specifically as a Special Trailer (ST) tire and tested to exceed Department of Transportation standards, so you can count on dependable performance mile after mile.

Stable Handling on Uneven Roads: Bias-Ply Construction with Durable Nylon Cords

This tire uses bias-ply construction with nylon cords laid at a 30-45° angle in alternating layers. That crisscross pattern gives the sidewalls extra stiffness so the whole tire flexes evenly. The result is a smoother ride, improved handling, and stability when the road isn’t perfect—ideal for conditions where traction and steady tracking matter most.

Reliable Road Life: Advanced Rubber Compound and Flatter Tread Profile

The Loadstar’s flatter tread design helps it stay planted and stable under load, while its advanced rubber compound is engineered for long tread wear and low rolling resistance. That means less heat buildup and a smoother ride, even on extended trips where consistency counts.

Worry-Free Protection from Day One: 1-Year Guarantee Included

Unexpected damage happens—but with Kenda’s 1-Year Worry-Free Guarantee, this tire will be replaced at no charge if it’s damaged within the first 12 months. It’s backed by a full 5-Year limited warranty too, giving you extra peace of mind every time you pull out on the road.

Specs

Compatibility

  • Fits: 14" x 5-1/2", 14" x 6", 14" x 6-1/2", and 14" x 7" wheels
  • Tire size: ST215/75D14

Dimensions

  • Section width: 8.4"
  • Outer diameter: 26.3"

Weight and Capacity

  • Load range: C
  • Ply rating: 6
  • Maximum load: 1,870 lbs at 50 psi

Warranty

  • 5-Year limited warranty:
  • 1-Year worry-free guarantee:
Determining Bolt Pattern

1. Count the lug holes

Look at the wheel hub or the back of the wheel and count how many lug holes there are(also called bolt holes).

Common configurations include: 4-lug, 5-lug, 6-lug and 8 lug

2a. For even lug counts (4-lug, 6-lug, 8-lug)

Measure from the center of one lug hole directly across to the center of the hole opposite it.

Center to Center
Common configurations: 4 on 4", 6 on 5.5", 8 on 6.5"

2b. For odd lug counts (5-lug)

Measure from the center of one lug hole to the outer edge of the hole directly across (not center-to-center since there's no directly opposite hole).

Center to Outside Edge
Common configurations: 5 on 4.5" (most popular), 5 on 5", 5 on 4.75", 5 on 5.5"

1ST90 Loadstar K550 Bias Tire - LR C





Customer Satisfaction Score:

Ratings & Reviews

4.7

4013 reviews
5 Stars
(3387)
4 Stars
(424)
3 Stars
(85)
2 Stars
(38)
1 Star
(79)
Review sort icon
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.

by:

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



by:

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



by:

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



by:

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.



by:

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



by:

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



by:

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.



by:

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

Kevin profile picture

Kevin

7/25/2019

Great, its nice to have tires that do not bounce with loaded trailer.



by:

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



by:

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

Heather A. profile picture
Etrailer Expert

Heather A.

10/20/2018

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.



by:

Tires were better than expected.



by:

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.



by:

Very good tires for a very good price!



by:

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.



by:

Satisfied with the product, but the tire come flattened, which is no problem



by:

Excellent staff and everything was on time. Even the follow up email from Amy was awesome. Thanks for the help. I will be seeing you again very soon.



by:

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,



by:

Great tires that don’t break the bank but the way they are packaged is terrible. Basically vacuum sealed resulting in making the bead to get seated quite the hassle. The garage I took it to complained



by:

The correct tire approved in a timely fashion and a local shop mounted it to my existing rim without issue...



by:

Outstanding…..1984 American Skier + trailer completely restored. Thank you!



by:

Got tires when they said they be would arrive.



by:

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.



by:

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.
Thanks.



by:

I'd give them 5 stars if they weren't so hard to mount, they come squished, folded inside to themselves. A bear to open and mount myself... Last pair lasted over 5 years, so hopefully the same with this pair.. Best prices out there, FREE SHIPPING..



by:

The tire was a perfect match to the other 3 tires on my trailer. The tire very misshapen from storage, I was happy the garage was able to mount it on the rim. {reason for 1 star short of excellent}


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

  • Recommended Replacement for H78-14 Tires
    Molson, the H78-14 tire size is equivalent to the ST215/75-14 tire size like the Loadstar ST215/75D14 Bias Trailer Tire # AM1ST90.
    view full answer...
  • Will Switching From Radial To Bias Ply Tires Help With Trailer Bounce?
    Hey Darryl, thanks for getting in touch. Generally, radial tires are better for reducing trailer bounce than bias ply tires. Radial tires tend to flex a bit more and should not bounce as much as a bias ply. That said, if your tires are excessively worn and starting to separate, this can contribute to the trailer bounce. I do not believe that switching to bias tires will give any significant benefit though. There are most likely other factors contributing to this. Usually trailer bounce...
    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...
  • 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...
  • 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...
  • 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...
  • 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...
  • 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...
  • Modern Trailer Tire Size Equivalent to H78-14
    There are a couple of different size modern equivalents to the 78-14 tire size. But for an H78-14, you would need to use an ST215/75-14, see link. If you just want tires, we have bias tire # AM1ST90 and for a radial we have # AM10229. Make sure not to mix radial and bias tires for best performance and longest life of the tires. I have also included a link to our tire FAQ article for you. If you need a tire and rim and you have a 5 on 4-1/2 inch bolt pattern rim you would want a Karrier...
    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...
  • Spare Tire Carrier and Jack Recommendations for a Load Rite Single Axle Boat Trailer
    Yes, there does appear to be plenty of space to mount a spare tire carrier and spare on the tongue of your boat trailer. Fulton Hi-Mount Spare Tire Carrier - Fits 4- and 5-Lug Wheels Item # FSTC1000301 is a popular option. It will hold the tire out from the frame 4-1/2 inches so it will clear the winch stand. On trailer jacks such as # FXPD15L the retracted/extended measurements are taking from the center of the jack mounting bracket to the bottom of the jack. So on the # FXPD15L it is...
    view full answer...
    Image 1 for
  • 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...
    Image 1 for
  • 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 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...
  • 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 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...
  • Frequent Trailer Tire Blowouts and Dry Rot on a Tandem Axle Boat Trailer
    Tires blowing out is usually caused by either overloading the tires or because of excessive heat generated when the tires are under inflated. But with all of the problems you are having there may be something else going on as well. I recommend having the trailer inspected for suspension wear. Any egg-shaped holes in the suspension components could be the root cause of the problem. If the axles are torsion axles without suspension then this would not be the case. I also recommend pulling...
    view full answer...
  • Replacement ST215/75-14 Trailer Tires
    You can get the ST215/75D14 tires by themselves as part # AM1ST90. If you would rather go wit ha radial tire then use # AM10229. Both tires are rated for 1,870 pounds at 50 psi. Current pricing is available on the product pages. I have included a link to our informational article on trailer tires for you.
    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 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...
  • 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...
  • 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...


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