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This Loadstar ST175/80D13 bias tire delivers a 1,360-lb maximum load at 50 psi and carries an M speed rating (81 mph). The 6-ply design gives it the strength needed for steady towing across long distances or frequent trips. Paired with a steel wheel rated at 1,660 lbs, it’s built to meet DOT specifications for confident highway use.
No extra mounting work required. The tire comes already mounted on a 13" x 4-1/2" galvanized steel wheel with a 5 on 4-1/2" bolt pattern and a pilot diameter of 3.19". It’s aired up and ready to install so you can skip the shop time and hit the road faster.
Moisture, salt, and humidity don’t stand a chance against the galvanized finish on this 8-spoke steel wheel. It’s made to stay corrosion-free season after season, whether stored outdoors or used around water. That means less worry about rust and more focus on keeping your trailer rolling.
The bias design uses thick nylon cords set at a 30- to 45-degree angle in alternating layers. This crisscross pattern stiffens the sidewalls so the whole tire flexes evenly, helping maintain stability and a smooth ride when towing over rough or uneven terrain.
If this tire is damaged within the first 12 months, it’s replaced at no charge under Kenda’s worry-free guarantee. Combined with a 5-year tire warranty and limited 2-year wheel warranty, that kind of coverage makes this combo a dependable long-term choice for everyday trailer use.
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:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
The tires apear to be of a good quality. They look sharp installed. To make a better end result I took some black paint and painted the hub, springs, under side of fender, and the lug nuts. I use anti seize on the threads just for future ease. I would recommend this product to anyone looking for a good quality rim and tire. This has been another awesome experience with Etrailer, last project was redoing my boat trailer which was a breeze with the quality products. That project consisted of new springs, rims and tires, new U bolts, and toped it off with a set of LED submersible lights. I will definitely use this company again, not only due to the quality but the price is not bad.
Installed great, waiting to see how they track when I take the trailer out.
Apart from the tire, you guys are terrific. I received my order in less than 48 hours! You have got it going on!
Chris
6/21/2025
Yep—-still a winner—-everything I hoped it would be. It has given me great service!
Seems to be a great quality tire on a great wheel for a great price. Very simple to remove old set and just on a new one without having tk visit the tire shop. Well packaged shipment also and good delivery time.
quick reliable service Thanks
I didn't receive anything.
Great company to work with! Very easy transaction and shipping.
Online purchase was smooth and tire arrived quickly. Nicely packaged.
It works like it should
Spare tire and Fulton mount arrived in perfect condition and on schedule. Nice addition to the boat, and way cheaper than my local marine dealer. Road trip approved.
Fast shipping, good tires, but the rims look like trash. See photos. Customer service says this is the way the should look, but it does not look like the picture they show on the site. Doubt I will ever use this site for future purchases.
The items are exactly what I ordered and showed up in great condition.
Super fast delivery. Tires and rims were just as described on the website. I used these on my Bayliner 18’ ski boat trailer. Perfect match for the old ones. The lug nuts on the trailer were frozen so I sprayed them with Liquid Wrench and inserted a 5’ long metal pole I happened to have over the socket wrench (see photo), and with the added leverage of the pole, was able to get all the lug nuts loosened.
Perfect replacement.
etrailer does it again! I ordered, and it gets shipped and delivered within a few days. Pretty damn good! Love etrailer and their business!
Lauren was very helpful in helping me find the original tires on my boat trailer. She sat me over $40.00 if I would’ve purchased them locally. She also save me time and 1 hour drive time to purchase them here because of etrailer FREE DELIVERY. They arrived on time and very well packed. Thanks so much Lauren for a well done job! A very happy and pleased customer ,
Richard
I wanted to upgrade the 12” wheels to 13” on my boat trailer and these were just the ticket!
Appears to be an excellent product and delivery time was exceptional! Very satisfied customer!
Product was exactly as advertised. Shipping was exactly as stated. Certainly an outstanding option for online tire purchases.
I purchased two of these tires to replace my Carlisle Class B boat trailer tires. I just installed them on my trailer so I can't comment on how they perform. They are nice tires with the galvanized rims. I also purchased the Fulton Hi-Mount tire mount to use for my spare tire. Worked with Corey at eTrailer. Received my tires promptly. Appreciate the personalized customer service Corey provided.
Tires were exact replacements from original equipment on my trailer. Originals treated me right since 2003, so I stuck with Loadstar. Ordered tires and rims made it easy for me to plug and play. Fast shipping and packaged well.
great looking spare tire Thanks
Nice looking galvanized rims and Kenda tires. The packaging was easy for the UPS driver and men to handle.
Thank you. Quick and easy order selection and very prompt delivery! Hope I never have to use it as it will serve as a spare for the boat trailer.
Been over a year now and the tires and rims still perform great. Very happy with our purchase and would recommend.
Yep, they're tires, they are round and made of rubber, the wheels are galvanized, and the bolt pattern is 5x4.5. Shipping was excellent.
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Jeremy
9/21/2017
Great tires have held air pressure and the trailer tows nicely behind the tow vehicle