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Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range B

Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range B

Item # AM30550
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Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range B 4.80-12 AM30550
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Bias tire has a ply rating of 4 and a 785-lb maximum load at 60 psi. The 12" diameter x 4" wide steel trailer wheel features a 4 on 4 bolt pattern and a corrosion-resistant galvanized finish. Lowest Prices for the best trailer tires and wheels from Kenda. Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range B part number AM30550 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (2872)
  • Q & A (5)
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Kenda Trailer Tires and Wheels - AM30550

  • Tire with Wheel
  • 12 Inch
  • 4 on 4 Inch
  • 4.80-12
  • Load Range B
  • Steel Wheels - Galvanized
  • Boat Trailer Wheels
  • Bias Ply Tire
  • Kenda
  • Good Rust Resistance

Bias tire has a ply rating of 4 and a 785-lb maximum load at 60 psi. The 12" diameter x 4" wide steel trailer wheel features a 4 on 4 bolt pattern and a corrosion-resistant galvanized finish.


  • Trailer tire by Kenda is designed for excellent handling at high speeds
  • 8-Spoke steel wheel is galvanized to resist rust
  • Tire-and-wheel assembly meets Department of Transportation specifications


  • Rim dimensions: 12" diameter x 4" wide
  • Bolt pattern: 4 on 4"
  • Wheel capacity: 1,250 lbs
  • Wheel bolt size: 1/2"-20
  • Pilot diameter: 2.84
  • Tire size: 4.80-12
    • Section width: 4.8"
    • Outer diameter (when inflated): 20.5"
  • Tire capacity:
    • Load range: B
    • Ply rating: 4
    • Maximum load: 785 lbs at 60 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"

30550 8-Spoke 12" Galvanized Wheel and Kenda K353 Bias Tire - LR B

Video of Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range B

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 - AM30550 Review

Customer Reviews

Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range B - AM30550

Average Customer Rating:  4.9 out of 5 stars   (2872 Customer Reviews)

Bias tire has a ply rating of 4 and a 785-lb maximum load at 60 psi. The 12" diameter x 4" wide steel trailer wheel features a 4 on 4 bolt pattern and a corrosion-resistant galvanized finish.

- AM30550

I purchased a pair of 4.80 x 12 trailer wheels and tires, and they are exactly what I hoped for to replace the 4.80 x 8's that were on the trailer. I do not currently have any miles on them yet, hence the 4 stars rather than 5. Quick delivery, and the box and its contents survived shipping admirably. The bolt-on 1-7/8" coupler is a cost-effective replacement for my old rusty one. 692684

- AM30550

Can't beat the price!!! nice tires for my small boat trailer, 901469

- AM30550

Great Customer Service! They went out of their way to expedite my order. Thank You! 861083

- AM30550

This company is the greatest , from ordering ,pricing and receiving a good product in a timely manor. 848761

- AM30550

Nice tires and rims, fit perfectly and look good! 795024

- AM30550

This company is outstanding the personnel is unbeatable their service and quality I shop nowhere else that's all I got to say 784277

- AM30550

I've had these for a year now, and I'm happy with them. I use the utility trailer about 10 times a year for various things like camping, hauling motorcycles, taking things to the dump etc. The trailer is outside all the time and the galvanized treatment is working great no signs of rust at all, they still look new. Tires are holding up well with little wear and the tubes inside must be good quality as the air pressure stay very constant. I would buy these again for sure. 784105

- AM30550

Bought two to replace on boat trailer. Exactly what I needed. Trailer pulls great with theses on. Exact match and easy install. After a year they still are in great shape and look good too. 782385

- AM30550

Very nice at a fair price. Super fast d elivery. 773682

- AM30550

etrailer Company is so thorough and have everything one needs, Great prices & selection. Always the best in parts & prices 771330

- AM30550

Easy, my sales rep was super helpful and I received my tire is just a few days. I will definitely purchase from etrailer.com again! 754881

- AM30550

Have ordered many an item from etrailer...( To my Wifes' dismay ) Absolute wonderful people at etrailer and the "How to Videos" are amazing...I from Washington State thank all of you.... 739216

- AM30550

Product was exactly what I ordered and no issues. Items came quick and I live in Alaska 734194

- AM30550

The two trailer tires I ordered arrived as scheduled, and were a perfect. I will certainly plan to order future trailer parts from "etrailer" before looking elsewhere! Thanks 723342

- AM30550

Very fast shipping and easy to order exactly what I needed. I have used Etrailer for a couple years now. 721299

- AM30550

Best price I found. Wheels and tires arrived as advertised and have worked well for my boat trailer. 717497

- AM30550

Really nice finish!! Fits perfectly. 714428

- AM30550

Only took a few days to get . Mine came with load star tires , cheaper than just replacing tire , valve stems and installation . Nice galvanized finish . I got two wheels the price went up but it's still a good deal . This is my new TrAiler parts store 652073

- AM30550

Exactly what I needed, at a good price. Delivery was almost immediate. Before I expected, which is good! No hassles. 646754

- AM30550

Prompt, helpful service from staff in finding the right wheels and tires. Excellent experience and very cost effective too. This change in wheel and tire size works perfectly on our small utility trailer/wagon. 639089

- AM30550


- AM30550

fast service 601231

- AM30550

Great delivery time This is great price because if your like me your tires dry rot before you can wear them out and the rims are ate up with rust . this price was cheaper than a just a tire here at our local stores and you have a galvanized rim on top of that . 598095

- AM30550

Great product at incredible price and was upgraded in shipping at no extra charge! Quality product, Great support you can not go wrong doing business with them! I would highly recommend doing business with them! 567025

- AM30550

Wheels arrived quick look great and will look good on my kayak trailer I am working on. It was cheaper for me to buy these wheels and tires than to get just tires and have them mounted. 562536

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Info for this part was:

Installed by:
Jeff D
Expert Research:
Jameson C
Updated by:
Laura H
Updated by:
Mary E
Updated by:
Sarah W
Updated by:
Isabelle B

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