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Loadstar 5.70-8 Bias Trailer Tire with 8" Galvanized Wheel - 5 on 4-1/2 - Load Range C

Loadstar 5.70-8 Bias Trailer Tire with 8" Galvanized Wheel - 5 on 4-1/2 - Load Range C

Item # AM30150
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Shipping Weight: 14 lbs
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Bias tire has a ply rating of 6 and a 910-lb maximum load at 75 psi. The 8" diameter x 3-3/4" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish. Lowest Prices for the best trailer tires and wheels from Kenda. Loadstar 5.70-8 Bias Trailer Tire with 8" Galvanized Wheel - 5 on 4-1/2 - Load Range C part number AM30150 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (2913)
  • Q & A (5)
  • Videos (1)
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Kenda Trailer Tires and Wheels - AM30150

  • Tire with Wheel
  • 8 Inch
  • 5 on 4-1/2 Inch
  • 5.70-8
  • Load Range C
  • Steel Wheels - Galvanized
  • Boat Trailer Wheels
  • Bias Ply Tire
  • Kenda

Bias tire has a ply rating of 6 and a 910-lb maximum load at 75 psi. The 8" diameter x 3-3/4" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish.


  • Loadstar bias ply trailer tire by Kenda is designed for excellent handling at high speeds
  • Steel wheel is galvanized for superior corrosion resistance
  • Tire-and-wheel assembly meets Department of Transportation specifications


  • Rim dimensions: 8" diameter x 3-3/4" wide
  • Bolt pattern: 5 on 4-1/2"
  • Wheel capacity: 910 lbs
  • Wheel bolt size: 1/2"-20
  • Pilot diameter: 2.8"
  • Tire size: 5.70-8
    • Section width: 5.9"
    • Outer diameter (when inflated): 18.0"
  • Tire capacity:
    • Load range: C
    • Ply rating: 6
    • Maximum load: 910 lbs at 75 psi
  • Warranty:
    • 5-Year on tire
    • Limited 2-year on wheel

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.

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

Bolt Pattern - Odd

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Bolt Pattern - Even

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

Bolt Pattern - Side

Measuring the distance from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

  • If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
  • If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
  • If D = 3", then the bolt pattern is 5 on 5"
  • If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

30150 Solid 8" Galvanized Wheel and Loadstar by Kenda K353 Bias Tire - LR C

Video of Loadstar 5.70-8 Bias Trailer Tire with 8" Galvanized Wheel - 5 on 4-1/2 - Load Range C

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Kenda Tires and Wheels - Tire with Wheel - AM30150 Review

Today, we'll be talking about part number: AM30150 - the Kenda 5.7 X 8 Bias Trailer Tire on the Dextar 8" Galvanized Wheel. The steel wheel is galvanized for superior rust resistance. This wheel measures 8" in diameter by 3-3/4" wide. It has a 5 on 4-1/2" bolt pattern, meaning that it has five lug holes on a 4-1/2" spread. To get this measurement, there are a few ways, we'll go ahead and show you two. The first will be to draw a circle in the center of each of these lug holes and measure the diameter of that circle.

We'll start by measuring from the center of one of the lug holes directly across between the two other adjacent. That will give you 4-1/2". The other way is to measure from the center of a bolt hole directly to the next bolt hole center. And this wheel has a 2-5/8" length. We'll know by using the chart found on the information page that that means we have a 5 on 4-1/2" bolt pattern.

This wheel has a capacity of 910 lbs and a wheel bolt size of 1/2" X 20". One more crucial measurement is the pilot diameter. This is the large hole in the center of the wheel which will go over the hub of the axle. This wheel has a 2.8" pilot diameter. We'll now move on to the tire.

This is a Loadstar 5.7 X 8. It has an outside diameter of 18". This tire's capacity is a load range C, 6-ply rating, which will give it the maximum load of 910 lbs at 75 psi. It is of bias construction, meaning that the belts within the tire will run the length of the tire. This wheel and tire combo comes with a limited two-year warranty.

And that does it for part number: AM30150.

Customer Reviews

Loadstar 5.70-8 Bias Trailer Tire with 8" Galvanized Wheel - 5 on 4-1/2 - Load Range C - AM30150

Average Customer Rating:  4.9 out of 5 stars   (2913 Customer Reviews)

Bias tire has a ply rating of 6 and a 910-lb maximum load at 75 psi. The 8" diameter x 3-3/4" wide steel trailer wheel features a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish.

- AM30150

Works great! 905259

- AM30150

Came when stated 872635

- AM30150

I have great experinence dealing with etrailer in the past and this last purchase was no exception. They are always in communication about my orders with me and my orders always have arrived as expected in a timely manner. 822846

- AM30150

These tire and wheel combo fit my boat trailer perfectly! The shipping was very fast and the communication was great I highly recommend these people and greatly appreciate their service!! 777153

- AM30150

Wheels and tires came fast and already inflated. Just had to get out the jack and they were on in ten minutes. etrailer is the best. 725584

15 trips and 3000 miles later and the wheels and tires are working out great. Minimal tread wear. I’m ready for another year.
Richard - 11/14/2020


- AM30150

I purchased the AM30150 galvanized wheels and 5-70 C rating tires for my sailboat trailer.I could not find the C rating tire in local stock of any of the tire retailers in my area. I ordered these online from etrailer.com. I found the purchase price to be the most competitive, the size was in stock and the delivery was quick. After one year of service they have no rust and they have performed well with no visible wear. 695669

- AM30150

I purchased these tires & wheels to use on a small boat trailer. They are working well and I am happy with my purchase (as always with e-trailer). 682707

I am still happy with the tires and wheels a year later. I cant say they have a lot of milage as I keep the trailer a few 100 yards from the boat ramp. But no problems or complaints.
Doug P - 08/10/2020


- AM30150

They hold air OK. They're advertised as Kenda brand but that is not the brand on the tire! I'd tell you what it does say but I'm inside, and there's a sleet storm out right now. 621786

- AM30150

Everything it is supposed to be! 611035

- AM30150

Tires looked good out of box. Rubber appeared new. No reason to suspect that I won't get many good years of service. 607312

- AM30150

Prompt service and fast shipment! Packaged nicely! Exactly what I needed. Many thanks! 562197

- AM30150

tires were shipped quickly and arrived on time in good order exactly as specified. Looking forward to improved ride on my motorcycle cargo trailer. 478481

- AM30150

Looks and functionality. Now tires are rated correctly for pop-up! Thanks for your excellent help. Bruce M. 424388

As you well know camping in a popup is spuraic at best. They wintered well parked on boards and covered. We traveled approximately 1500 miles with no issues and no lose of pressure. They still look and act new! We will be retiring this camper this season and will sell with great looking tires and wheels. Next camper is a used hybred with 14 tires!
Bruce M - 08/24/2018


- AM30150

Tires and rims are as stated and all worked well and fit good and bolted up good and tight. 408879

- AM30150

Fast easy transaction 361290

- AM30150

Tires and wheels are great. Easy to order. Arrived quickly. Awesome! 328517

- AM30150

Got this tire and rim package deal everything fit as it should I got the galvanized ones could of been dipped or sprayed better I would still order from etrailer.com again package showed up promptly and quick response from sales guy to make sure I had received my package 271590

- AM30150

Tires and wheels for a Taylor-Dunn electric service cart They look great. Thanks for your wheel lug spacing info, it made Picking the right rim easy! 220689

- AM30150

Tires and wheels for a Taylor-Dunn electric service cart They look great. Thanks for your wheel lug spacing info, it made Picking the right rim easy! 220688

- AM30150

fast shipping great deal but not a Kenda tire 211080

- AM30150

I called etrailer looking for help with tires and trailer locks and was very happy with the help and products i recieved.The people at etrailer were very knowledgable and very helpfull and got me exactly what i needed in a very timely manner.Thank You very much as you have a customer for life. 151704

- AM30150

This is just the tire that I was looking for , and etrailer website is the most comprehensive site for all your trailer needs. 52249

- AM30850

Review from a similar Loadstar Galvanized in Trailer Tires and Wheels

Nice tire and wheel at a good price. I chose this as the bet match for the tires that came on an aluminum trailer I bought. Using it as a spare. 717518

I have not needed to use it yet bought as spare, but it hold pressure well.
John N - 10/16/2020


- AM3H490

Review from a similar Loadstar Galvanized in Trailer Tires and Wheels

Blew a boat trailer tire on the way home 2 days ago. Shocked as the trailer is 3 years old and has less than 1000 miles on it. Looked at prices locally to replace one and was disappointed on the wait time /price etc. Checked on line with etrailer and price to order 2 with rims was a lot cheaper for sure. Ordered them and received them in 2 days. Packaged very secure and professionally. “WOW”. Spoke with customer service on a question I had and received 3 emails back in less than a hour. This company is a class act.. Start to Finish. Will be buying more items from them. Nice to find a-company that really does care.. 703589

Very good.
Dennis - 10/03/2020


- AM3S160

Review from a similar Loadstar Galvanized in Trailer Tires and Wheels

I have about 3000 miles on them and they have worked well. They hold air well and track true and straight. I keep them at the recommended pressure and do not overload them. They support a 17' boat that has a total weight of 1900 LBS. That includes trailer, boat and motor. Very little corrosion but I keep them rinsed off after saltwater use and also they are covered from the sun. 784657

Show More Reviews

Ask the Experts about this Kenda Trailer Tires and Wheels

  • Looking for 4.80X8 Tire on Galvanized Wheel with 5 Lugs
    We do indeed have the wheel/tire combo you're looking for, assuming that you need a 5 lug wheel with a 4-1/2 inch bolt circle. If you click the provided link, you can see how to determine the bolt pattern of your existing wheels. Part # AM30030 is a 4.80/4.00-8 Bias Trailer Tire mounted on an 8 inch galvanized rim. The tire is a load range B with a 590 lb capacity at 60 psi. Part # AM30070 is also a is a 4.80/4.00-8 Bias Trailer Tire mounted on an 8 inch galvanized rim. The tire...
    view full answer...
  • Fit and Compatibility of 4.80/4.00-8 Trailer Tire on Waverunner Trailer Equipped with 5.70-8 Tires
    It sounds like your waverunner trailer has the 5.70-8 trailer tire on it. The smaller 4.80/4.00-8 Bias Tires # AM30070 you referenced would fit your 5 on 4-1/2 inch bolt pattern but may not be compatible with the weight rating of your trailer and waverunner. The Load Range C # AM30070 has a capacity of 760lbs at 90psi for a total axle weight of 1,520lbs. If your trailer and waverunner are within these limits then this combination could work for you. Keep in mind that you will also...
    view full answer...
  • Selecting Replacement Idler Hubs, Wheels and Tires for Sailboat Trailer
    For your trailer that has a 1-inch spindle and which requires hubs with part # L44643 as inner and outer bearings, we do have options shown on the linked page. These include both idler hubs like part # AKIHUB-545-2-1K that you referenced and hub/drums like # AKHD-545-2-EZ-1K. These items and the others shown have the 5-on-4-1/2-inch wheel bolt pattern. You will want to confirm your axle weight rating (on the sticker or plate that is usually attached to the axle beam itself) so that you...
    view full answer...
  • Recommended Axle With Hubs For Compatibility With 8 Inch Wheels For Boat Trailer
    Unfortunately we don't have any hubs that fit your current spindles. I recommend replacing your axle and that will be determined based on the length of your axle and capacity needed. For a galvanized steel option ideal for a boat trailer, I recommend the CE Smith Trailer Axle w/ Idler Hubs - 5 on 4-1/2 Bolt Pattern - 57-1/2" Long - 1,800 lbs # CE33201GA-HUB. Another option is the Dexter Trailer Axle w/ Idler Hubs - EZ-Lube - 5 on 4-1/2 Bolt Pattern - 72" Long - 2,000 lbs # 20545I-EZ-72-15...
    view full answer...
  • Can Tubes be Used With Trailer Tire AM10012?
    It is not recommended to use tubes in a tubeless tire like the Kenda K353 # AM10012 because it will generate more heat in the tire which can lead to a blowout. If you are looking for a tire with tubes because the wheels on your trailer are designed for tube tires, I recommend replacing the wheel and tire. To do this, you only need to know your wheel's bolt pattern; if you are unsure what it is I have added a link to a help article detailing how to find it. For a 5.70-8 bias tire and...
    view full answer...

Do you have a question about this Trailer Tires and Wheel?

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Info for this part was:

Expert Research:
Mike L
Updated by:
Lindsey S
Updated by:
Laura H
Updated by:
Mary E
Updated by:
Hannah L
Updated by:
Isabelle B
Installed by:
Jeff D

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