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

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

Item # AM30630
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Trailer Tires and Wheels AM30630 - Bias Ply Tire - Kenda
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Bias tire has a ply rating of 6 and a 990-lb maximum load at 90 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 C part number AM30630 can be ordered online at or call 1-833-496-1390 for expert service.
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Kenda Trailer Tires and Wheels - AM30630

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

Bias tire has a ply rating of 6 and a 990-lb maximum load at 90 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"
  • Offset: 0
  • Tire size: 4.80-12
    • Section width: 4.9"
    • Outer diameter (when inflated): 20.7"
  • Tire capacity:
    • Load range: C
    • Ply rating: 6
    • Maximum load: 990 lbs at 90 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"

30630 8-Spoke 12" Galvanized Wheel and Kenda K353 Bias Tire - LR C

Customer Reviews

Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range C - AM30630

Average Customer Rating:  4.8 out of 5 stars   (4487 Customer Reviews)

Bias tire has a ply rating of 6 and a 990-lb maximum load at 90 psi. The 12" diameter x 4" wide steel trailer wheel features a 4 on 4 bolt pattern and a corrosion-resistant galvanized finish.


This is my iceboat trailer with new wheels and improved fender brackets. Rust prevention is my main goal on this order. The price was lower than the local store. The delivery was completed in under 48 hours. Amazing! I believe the former white painted wheels were purchased about 10 years ago. They need restoration. The tires might have 2000 miles on them. I recommend galvanized wheels as in this new order. Two wheel and tires for under $100!! Fantastic – and much cheaper than the local tire dealer who offers white painted wheels that rust - by over $20. And free shippng.

By the way, each fender now has two brackets as suggested by eTrailer.

The trailer sat in the woods all summer,since it is a iceboat trailer used in winter. I just pulled it home from the cabin. The wheels look perfect. They have a silver finish, not white paint. Happy!
Peter - 12/07/2018


My whole experience from start to finish couldn't have gone any smoother. i called eTrailer with alot of questions. I needed to go from an 8 inch tire to a 12" tire,they were nice,knowledgeable and pateint. i found the tires and the wheels i wanted and had them within two days of ordering. just put them on my boat trailer and they look great!


Great price for a galvanized wheel and tire package. Doesn't pay to put a new tire on a rusted steel wheel.

by: 09/12/2022

Horrible Quality! Rim had many manufacturer defects and was bent and out of balance since day one. The tire was properly inflated and had a blowout after only a few hundred miles. Quality control is lacking. Spend your money on a quality rim and tire. This isn't one!


Very nice tires and rims


I give it five stars for availability of products. This is the second time trailer has been able to provide a product I needed in a timely manner. I did buy the lessor expensive item of choice instead of the better item so I’m not complaining, but the finish on the galvanized wheels is a little rough. Hopefully it will hold up a while and not quickly rust.


Great price, excellent quality, and fast product delivery. Love the tire/wheel package.


The tire I had originally picked on etrailer for my motorcycle trailer was out of stock but I needed them for a motorcycle trip I was leaving for that same week. An etrailer staff person (James) notified me immediately and helped me find a equal replacement that arrived on time at no extra cost. I am very pleased with the tires he recommended. They performed exceptionally well on my trip.

Great product and even greater service!

Still very happy with my trailer tires! Great product and I have had zero issues with them.
Ed S - 06/29/2017


Happy with this purchase and the customer support received. When I first ordered I didn't realize there was a galvanized wheel, nor that there was a tire with a higher load capacity in the size I needed. etrailer sent me a shipping label to return the first tire, and I wound up getting two. One year later, no rust on the rims, tires have been performing well on my canoe trailer, and holding their air well. Stored outside, my only concern is that weather will 'retire' them before mileage does which is typical of any trailer tire I think.


i purchased two of these tires to replace the old rotting ones my brother had on his boat trailer. after a brief and quite explicit questioning from the sales representative i decided on two tires she had made available for me. from the rim coating to the tread depth and all points in between , i could tell that ci called the right company! she did not SELL me a set of tires ... she sold me confidence in the tires i was buying and the reason why i should purchase them. An absolute delight to work with over the phone! my brother has said before how much sway he had with the trailer driving at highway speeds... he loves boating and every chance he got he was off to another lake, river or large pond.... hi only dread was his trailer not making the few miles he was driving.... i never knew tires could make such a dramatic difference in how a trailer tracked and how they could assist in controlling sway.... all i can say now is.... the young lady who assisted me in my purchase went far beyond the normal scope of customer care and assistance. for the record i ended up having to drive the trailer and boat and whatever else i could load into it down to Texas from Indiana for my brother. he too is now amazed at the way his trailer responds to being driven to and from lakes rivers and large he has no dreads whatso ever, though now he has to come up with reason he cant catch any fish! thank you so much for putting me on the right track with these tires and rims...

well it has been a slight bit over a year since i made this purchase... now the tires and rim have well over 4000 miles on them and even with all the torture my brother has put them through, they are still like quasi new! too bad they haventenabled him to catch more fish, but he does practice daily...the tires have helped alot....but his fishing skill still lacks badly! have a safe trailing day!
wayne k - 07/11/2021


Galvanized and affordable what's not to like!


Got a set of these for my single place PWC trailer. I converted it to a 2 place stand up trailer and replaced the wheels/tires along with most everything else. These wheels look great and ride nicely.
Tip: Use one of your old wheels/tire as a spare. Order a spare tire holder from etrailer.


Bolted right up and made great replacement for my 5 year old set. Looks like good quality for the price.


Put these on my boat trailer as the original ones were dry rotted. Wheels look better than the painted ones. Tires are good quality.No more tire worries!


Fast shipping, great prices and great customer service. Tires and wheels exactly what I needed.


Tires arrived with one valve leaking at the base of rubber and the other valve with a internal striped valve thread so I couldn’t even inflate. Galvanized was very poor with lots ovv GB impurities. I would never buy again


Tires are very good. The phone service was excellent


Very happy with the 2 4.80X12 tires and wheels from Ordered on a Saturday and delivered to my door on Wednesday. Fast shipping and quality products at a great price! For use on a used boat trailer I picked up to haul my fishing kayak. Will order from this seller again!


Very good quality and great deal on these wheels and tires. Fast shipping. Highly recommend


GREAT seller


Arrived promptly and in good condition. Price included free shipping and tire age @<5 months. Huge upgrade from 4.80x8 trailer tires. Pleased with the purchase process


First, I would like to say "thank you" to Brandon and the rest of the folks for being awesome during my trailer restoration project. Accurate and courteous advice, fast service and just true genuine concern for the success of my project. The wheel/tire combination is great...but just the tip of the iceberg on top knotch service.


Always great doing business with etrailer. Fast, responsive, blink and your package arrives. These wheels replaced those on my little kayak and debris trailer which looks like a larger version of the little red wagon i had as a child except the trailer is white. I bought it used, and it's sort of crumbling apart and I didn't have a spare tire for it. So I figured I'd buy2 spankin' new ones and keep the others for spares. These not only look great but the weight rating is higher than the old ones! Nice.


Fast and accurate delivery!


FAST Shipping, exactly as ordered, quality products, very reasonable prices, total transaction AAA+++

Show More Reviews

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

  • What is Recommended Tire Pressure for Kenda Wheel and Tire AM30630
    The tire that is on the Kenda Wheel and Tire part # AM30630 requires 90 psi. Trailer tires have to be inflated to their max tire pressure otherwise they do not get their full capacity.
    view full answer...
  • Determining Correct Bolt Pattern and Tire Size for Replacement Tires and Wheels on Jayco Camper
    To determine the bolt pattern on your existing wheels, you will measure center-to-center on lugs directly across from each other (not next to each other). Most likely your wheels have a 4 on 4 inch bolt pattern, but you will want to measure them to confirm. I have attached a very helpful article that explains exactly how to do this in more detail for you to check out. You will then want to locate the tire size on your existing Jayco J-Series tires. This will be listed on the tire's sidewall....
    view full answer...
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  • Difference Between Tire Sizes 4.80-12 and 5.30-12
    The two tire sizes you referenced, 4.80-12 and 5.30-12, both fit 4-inch wide rims, but they differ in their overall diameter. A 4.80-12 tire/wheel when fully inflated will have a diameter of 20-1/2-inches while the 5.30-12 size will be just under 22-inches in overall diameter. The linked articles on trailer tires will give you additional information on sizes and tire types.
    view full answer...
  • What is the Difference Between 4.80-12 and 5.30-12 Sized Tires
    The main differences between the two trailer tire sizes you referenced are the outer diameter for the two and the capacities available. For the 4.80-12 tires they are 20.5 inches in overall diameter and have 785 and 990 lb capacities available. For the 5.30-12 they are 21.9 inches in overall diameter and have capacities of 840. 1,045, and 1,250 lbs. Larger tires tend to run a bit cooler and have higher capacities. I attached links to pages that have all of the wheels tires we offer...
    view full answer...
  • Recommended 12 Inch Tire/Wheel Combo For 1980 Fiberglass Travel Trailer
    We do carry wheel/tire combos to replace your wheels on your 1980 travel trailer. I have attached a link to the combos we offer that have a 4 on 4 bolt pattern you can check out. One of the combos I recommend is the Kenda 4.80-12 Bias Trailer Tire with 12 inch Galvanized Wheel, part # AM30630. This combo has an 8 spoke galvanized wheel and has a maximum load capacity of 990 lbs at 90 psi. This combo has a pilot diameter of 2.84 inches, and a Load Range C 6-ply tire. We do not carry...
    view full answer...
  • What Tire Pressure Should Trailer Tires be Inflated To
    Trailer tires should always be inflated to their max psi rating so that you ensure that you get the full weight capacity and best tire wear characteristics. For example, the part # AM30630 that you referenced should be inflated to 90 psi to get it's full 990 lb capacity. I attached a review video for this wheel/tire plus a help article on trailer tires for you to check out.
    view full answer...
  • Speed Rating for Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel # AM30630
    The Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel # AM30630 is rated for 65 miles per hour. If you routinely go above 65 miles per hour it will start to generate excessive heat. If it's one thing tires hate it's heat! All of the trailer tires in size 4.80-12 are rated for 65 miles per hour.
    view full answer...
  • Maximum Air Pressure Rating on Kenda 4.80-12 Trailer Tires # AM30630
    The maximum air pressure for the Kenda 4.80 -12 Bias Tire and Galvanized Wheel Combo # AM30630 is 90psi, so that should be what you run them on. Trailer tires should always be inflated to the max air pressure rated for the tire because they have a thicker sidewall than normal passenger tires and are built to carry more vertical load that occurs with a weighted down trailer. The tires should also be inflated to 90psi when cold, meaning before your trip. I attached a helpful article from...
    view full answer...
  • Do I Need to Give My Kenda 4.80-12 Trailer Tires # AM30630 Time to Cool Down When Driving
    The 90psi is going to be the cold filling pressure; as you drive, the tires are going to heat up and the air inside them is going to expand. When running long distances, most tire manufacturers recommend that you stop for 30 minutes for every 3 hours of driving in order to let the tires cool down. After each stop, it would be a good idea to check your tire pressure and make sure that they're not going below the 90psi if you are having tire pressure concerns.
    view full answer...
  • Recommended Tire & Wheel Replacement For 155x12 Wheel & Tire
    A 155x12 wheel and tire is not a very common size for trailers. A close match is going to be something like a 145/80-12 or a 4.80-12 like you mentioned. A 155 is going to be about 6.1 inches wide. A 145 will be 5.7 inches and a 4.80 will be 4.9 inches wide. The overall diameter of a 155 tire depends on the aspect ratio, the second number in the size, so a 145/80-12 tire has an aspect ratio of 80 percent. This means the overall tire diameter is 21.3 inches. Similarly, the 4.8 has a...
    view full answer...
  • Compatibility of Harbor Freight Trailer with Larger Tires
    The 4 on 4 inch bolt pattern is standard, so you can use a larger tire like the Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel - 4 on 4 - Load Range C # AM30630. The fenders are the biggest issue to upgrading size on that type of trailer so if that isn't an issue for you then it will work well.
    view full answer...
  • Does Pilot Diameter of Replacement Wheel Need to Match That of Old Wheel
    The answer to your question will depend on if you have hub centric or lug centric wheels. What's the difference? Lug centric wheels use wheel studs embedded in the hub and lug nuts to attach the wheels. The wheel studs provide all the support for the wheel. In this case, the wheel's pilot diameter isn't important as long as it's large enough for the hub grease cover to pass through it with some room to spare. Hub centric wheels are a different story. Hub centric wheels are held on by...
    view full answer...
  • Replacement Trailer Spare for Tire Size 4.80-12
    The tire diameters are very different between the two sizes. The bigger size you have now of 4.80-12 is overall 20.5 inches tall and the older size 4.80-8 is 16.1 inches. Since that difference is split between either side of the spindle you'd have one side of the trailer sitting 2.2 inches taller than the other. In a very short-term emergency situation you could probably limp home with that but I would highly recommend matching the larger tire size for a spare with something like the part...
    view full answer...
  • Replacement Wheel and Tire Recommendation for Load Rite Boat Trailer 14F1000W
    We have wheels and tires that would work well for you. You would need to know what bolt pattern your wheels have though. If you have a 5 lug bolt pattern the part # AM30670 would work well. This has an 65 mph speed rating and inflates to 90 psi when cold. For a 4 lug bolt pattern you would want the # AM30630 which also has the 65 mph speed rating.
    view full answer...
  • Which Trailer Tire Size is best for a Jet Ski Trailer that has 4.80-12 Tires
    Increasing tire width will not really benefit you in any significant way. You would see a slight increase in stability, but if the trailer already rides pretty straight, you may not see any improvement. The 5.30-12 tires would also make the trailer sit a bit higher. My suggestion would be to use part # AM30630. It is a galvanized wheel for 4 on 4 pattern. It is a load range C bias ply tire and each wheel would be capable of supporting 990 pounds at 90 psi, which should be more than enough...
    view full answer...
  • Are there differences in the Kenda 4.80-12 Bias Trailer part # AM30630 and the 5.30 part # AM30790
    The difference in the Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel part # AM30630 and the Kenda 5.30-12 Bias Trailer Tire with 12" Galvanized Wheel part # AM30790 is the size of the tire itself. The first is 4.80" wide and 20.7" tall and the second is 5.30" wide and 21.9" tall. If you are looking to upgrade size slightly and you have the room there is no issue substituting one for the other.
    view full answer...
  • Can Trailer Tire Size of 20.5x8-10 be Replaced with 4.80-12
    The two sizes you mentioned have the exact same diameter of 20.5 inches. The biggest difference is that the 12 inch size you are considering of 4.80-12 is much narrower at 4.9 inches compared to 8.4. Clearance wise you'd not have any problems at all. If you have a 5 lug bolt pattern you'd need the part # AM30670 or if you have a 4 lug pattern you'd need the # AM30630.
    view full answer...
  • Can 4.80/4.00-8 Trailer Tires be Replaced with 4.80-12 Tires on a Trailer Without Fenders
    Yes, you can replace your 4.80/4.00-8 tires with 4.80-12 tires and wheels such as # AM30630. This larger size will not be any wider than what you have and since the trailer doesn't have fenders the extra height will not be a factory. This tire and wheel combo has a 4 on 4 bolt pattern which is likely what your existing wheels have. But if you have a 5 on 4-1/2 bolt pattern you would need a different tire and wheel combo such as # AM30670.
    view full answer...
  • Spare 12-Inch 4-Lug Wheel/Tire for 1986 Coleman Camper
    There are five sizes of 12-inch trailer tire with a 4-bolt wheel but don't worry, the page linked for you shows all such 4-lug 12-inch wheel/tire items. The most popular 12-inch tire size is the 4.80-12 size and we offer the most choices in this specific size but all appear on the linked page. You'll want to ensure your spares match your regular tires in not only size but also in their weight capacity. The sidewall on your tires will indicate their size as well as their weight load range...
    view full answer...
    Image 1 for
  • Spare Wheel and Tire Recommendation for Karavan KBE 1250-46
    The part # AM30590 would be a great spare wheel and tire replacement as long as you have a 5 on 4-1/2 inch bolt pattern like what this has. Otherwise if you had a 4 bolt pattern you'd want the part # AM30630.
    view full answer...
  • Recommended Wheels/Tries for a Shorelandr Personal Watercraft Carrier (PWC) with 4.80 x 12 Tires
    The wheel/tire combo I recommend for a Shorelandr Personal Watercraft Carrier (PWC) is the Kenda 4.80-12 Bias Trailer Tire with 12" Galvanized Wheel part # AM30630 for a 4 bolt pattern or the Kenda 4.80-12 Bias Trailer Tire with 12" Aluminum Wheel part # AM30679 for a 5 bolt pattern. These two options both come with wheels which will be great for use on a boat trailer due to their resistance to corrosion which can cause leaks.
    view full answer...
  • Can 4.8-12 Tire Size Fit on Wheel that Had 4.8-8 Tire
    The numbers at the end of the two trailer tire sizes you mentioned are the wheel size they are intended to fit so what you are wanting to do is not possible. The size 4.8-12 is for a 12 inch wheel and the 4.8-8 is for an 8 inch wheel. So to go to the 4.8-12 size you'd need a wheel and tire combo like the part # AM30670 for if you have a 5 lug bolt pattern or # AM30630 for if you have a 4 lug bolt pattern.
    view full answer...
  • Trailer Wheel and Tire to Replace 4.80-8 with 4.80-12
    In the tire size of 4.80-12 on a 4 bolt wheel like you are wanting we have the Kenda part # AM30620 which has a 990 lb capacity so with a pair you'd have nearly double the weight capacity you'd need. This is a white wheel setup. If you preferred a similar option with a galvanized wheel you'd want the part # AM30630 instead.
    view full answer...
  • How Much Narrower is Tire Size 4.80-12 Than 185/80-13
    The tire size of 4.80-12 like what comes on the part # AM30630 is right at 3 inches narrower overall than the tire size of 185/80-13 so you would gain over an inch of inner sidewall room like you are needing.
    view full answer...

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