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This tire-and-wheel combo is built to hold up through long hauls and changing conditions. The Loadstar ST225/75D15 bias tire carries up to 2,540 lbs at 65 psi and is rated for 81 mph (speed rating M). The matching 15" x 6" steel wheel is rated for 2,830 lbs, meeting DOT specifications for dependable performance on the open road.
The tire’s 8-ply bias design uses strong nylon cords set at a 30-45° angle in alternating layers. This gives the sidewalls extra stiffness so the whole tire flexes evenly, improving stability and control when you’re loaded down or crossing uneven ground. It’s a rugged build that combines durability with smooth handling.
The steel wheel uses an e-coat base layer topped with a white powder coat finish that resists rust and road grime. The beveled stud holes keep the wheel tight against the hub without constant retorquing, adding another layer of reliability to a finish that holds up over years of use.
No need for a tire shop visit—the Loadstar ST225/75D15 comes pre-mounted, properly inflated, and matched so the tire’s heavy spot aligns with the wheel’s light spot for balanced towing. The setup uses a 6 on 5-1/2" bolt pattern, 4.27" pilot diameter, 0 offset, and 1/2"-20 wheel bolts. You can bolt it on and get rolling with confidence that everything fits right and runs smoothly.
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.
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).
Common configurations: 5 on 4.5" (most popular), 5 on 5", 5 on 4.75", 5 on 5.5"
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Recieved my order pretty quick. Tires and wheels I orderd are perfect. Glad I went through trailer once again. Will be ordering two more soon. Thank you so much.
I have been running these Loadstar K550's for years and they are good tires. I have used them on everything from utility trailers, RV's, boat trailers ect..... Great value and performance. This is my first time ordering from "etrailer" and the price was very competitive. Fast shipping and good packaging= I will be using etrailer in the future. Thanks
I am very pleased with the tires and wheels I purchased, the price was very good and the shipping was very fast. The wheels are of excellent quality and it was nice to buy them with the tires already mounted. The tires also seem to be very good quality I will definitely be checking with etrailer for my trailer needs from now on.
Thanks for a great product.
Ordered a spare wheel & tire for my recently purchased 2013 Haulin Trailer, it is an exact copy of the wheels and tires already on the trailer. Perfect Spare, received in a matter of 4-days, and no shipping cost. have been a customer for years and the only place I go for my RV and now enclosed trailer needs.
I recently bought a travel trailer. I asked about a spare and was quoted close to [$$$] for a spare tire, mount, and cover. I bought all of that for less than a third of the price from etrailer and mounted it in less than 15 minutes.
Great deal.
Ordered tire & wheel for my dump trailer. ETRAILER is the best company I have ever dealt with. The order was processed, shipped, and received in 3 business days. They send you emails and tracking info. Also the tire had an up to date, date code and shipping was free. I know who I will be buying my trailer items from, for now on.
Once again, extremely pleased with my order from etrailer. Ordering was easy. Product arrived quickly and was in excellent condition. Emails were sent to me from the company with status of shipping. My two trailer wheels and tires (AM3570) look great. This is a quality company in every way.
The excellent rating is for the delivery, they arrived in two days by UPS ground (initial estimate was 5-7 days). Since these tires & wheels have not rolled yet, it is hard to say how well they will perform. They replaced some very old 7.00-15LT's on my boat trailer, they should upgrade the look at the very least, and the 20% increased (tire) load capacity is a definite plus as a safety factor. The trailer bearings and brake system have been replaced, and the tires/wheels will top off the package.
I am very impressed with this website. A few weeks ago, I had a tire blow out on my 10K 6'x12' dump trailer when I had 3 tons of wood pellets on it on my way home. As soon as the old tire blew I pulled over and changed it out. I found the old tire and rim was destroyed. I searched locally for a new tire and rim for my trailer. I found that Les Schwabb's price for a rim and tire was $250 and the tire was very poor quality. I searched the web and found etrailer. I found the tire and rim I needed quickly and I also found it for about $100 dollars cheaper than Les Schwabb. I could not believe how expensive Les Schwabb was and how much they charged for a simple trailer tire and rim. I am very happy with the new trailer tire and rim I got from etrailer and I will continue to do business with etrailer from now on when I need things for my trailer. The trailer tire and rim from etrailer was much better quality than Less Schwabb. Definitely don't buy anything from Les Schwabb as they are a total rip off and greedy!
Good Experience, sorta...
I was torn on how to write this review. Simply, the wrong item was shipped, but the etrailer team quickly got me the right item, once I worked through the process...
etrailer has been a good resource for me to get trailer parts for a few years, but like many, they seem to be struggling. Inventory, staffing, shipping, customer service, it all seems to be strained.
This is not the first order issue I have had in the last 2 years, and the return process is overly complicated. Why if they have my order number and the item number I need to return, do they need a photo of the item? Why can I not do an exchange? Why as I get requests for a review of my experience am I am sorting through the process of a problem with an order. It seems the right hand does not talk tot he left hand, and a person has to navigate through several different people to get a problem resolved.
So my suggestion is make sure you don't need to go through the return and re-order process, and etrailer, make returns and or exchanges easier.
I put these tires on a two horse bumper pull trailer when we moved across the country last year. I had a lot riding on them literally and figuratively as we loaded up our horses in the middle of the summer to move and had these tires failed, we may have been stuck on the side of the road in 95 degree weather with live animals that would overheat quickly. Despite going through states with poor road maintenance and a couple thousand miles out on them on their main voyage, they functioned just I had hoped and still looked brand new after. All good since then as well, however we don’t use the trailer often or for long distances at the moment.
Great company. Good price and super fast shipping. Keep up the good work!
Great delivery your tracking app is the best
Tires go on the boat trailer tomorrow
Lauren A was super helpful.
Tires shipped and delivered fast, bolted right on my trailer and hauled my tractor home. Thanks!
A year ago, I ordered a set of (4) wheels and tires since I shredded an old tire on the way home one day, and my wheels on my second-hand trailer were rusted and did not match. Delivery was prompt, exactly as expected, and I am thoroughly satisfied with my purchase one year later. My trailer was once a "landscape" trailer and has faded, powdery blue paint which rubs off on you if you brush up against it. The new wheels and tires look fantastic and probably doubled the value of my trailer of twenty years and have certainly gotten my $$'s worth out of. I am now ordering new wiring and other trailer accessories from etrailer since I had such a great experience with them before, and I intend on keeping this ugly old trailer. etrailer has had my past business, they have my current business, and will have my future business as well.
Tires and wheels can't beat the price,delivery time was great putting them on this weekend, going to beach in August.
Tire and rim were shipped promptly and is an exact match for my tires and rims on my 2006 Sunnybrook camper. Reasonable price included shipping. My tire had shredded so I elected to get a tire and rim combo after having to use the spare to complete a trip. Customer communication was excellent and I am very happy with my purchase. Thank you!
Donald
1/28/2019
After a year, my tire and rim are working perfectly and I still feel very good about this purchase!
Very happy with the tires and wheels. I got them much sooner than I thought I would, which was free delivery! Tires and wheels came ready to mount. Very please with my experience with etrailer!
Kevin
12/28/2020
Tires and wheels are doing great! Have had no trouble at all with them. Great buy for the price and quality.
I got this for a spare for my new trailer. Tire and rim both good quality set.
I ordered the 2 Tires Monday afternoon and they were shipped Monday. I received the tires on Thursday and realized that I had ordered the incorrect hole pattern. I email Etrailer.com and they sent me return labels. The return shipping cost was taken out of my credit issued. I liked the tires and wheels very much so I reordered the correct size and ordered 4 more for another larger trailer.
Calvin
3/3/2019
Tires are holding up very well. Took a 500 mile trip with no problems. Put a lot of weight on the trailer, but it pulled very well, great tires for the price.
Excellent service the order was processed very quickly and delivered within a few days
We use etrailer for nearly every component of the custom trailers we fabricate. Great parts, great service and great prices.
Shipping was fast.
Great wheels & tires for a dross country haul. 23ft trailer, single axle, installed 5 leaf springs. 20ft Cape Horn CC boat with gear to the west coast from NWFL. Everything looked new after 2700 miles. Thanks!
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Mike L.
11/6/2025
I'm so glad to hear that, George! I'm glad Lauren took good care of you!