Is this right for you? Product Expert Mary E says:
Yes, if you:
- Have a boat trailer and need a rust-resistant finish
- Often tow on the highway to the lake or ocean
Is this right for you? Product Expert Mary E says:
Radial tire with automotive-grade tread has an 8-ply rating and a 1,220-lb max load at 65 psi. 12" x 4" Steel wheel has a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish. Beveled stud holes keep wheel secure.
Features:
Specs:
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.
Unlike standard trailer tire tread, which has solid, continuous ribs, the automotive-grade, computer-generated tread on these Karrier S-Trail radials has ribs with breaks. These breaks allow water to run off to the sides. The Karrier S-Trail tread also has sipes. Siping is a process in which thin grooves (or sipes) are cut into the rubber of the tire. The grooves channel water away from the tread so that the tire makes better contact with the road. Both of these features greatly improve traction during wet, snowy, or icy conditions.
Karrier S-Trail radials are constructed with double steel belts and full nylon plies for increased durability and endurance. The premium rubber compound materials of this tire help disperse heat.
The stud holes on this steel wheel are beveled to ensure that the wheel stays tight against your trailer hub. This also eliminates the need to constantly retorque the lug nuts.
Radial ply tires are designed for trailers that are towed on the highway. The cords on a radial tire are positioned at a 90-degree angle to the direction of travel so that they lay across the width of the tire from wheel lip to wheel lip. This construction prevents the cords from rubbing against one another when the tire flexes, unlike the cords on a bias ply tire. As a result, radial tires have less rolling resistance and heat buildup, which leads to a longer tread life and improved steering at higher speeds.
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.
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.)
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.)
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.
Average Customer Rating: 4.8 out of 5 stars (1057 Customer Reviews)
Radial tire with automotive-grade tread has an 8-ply rating and a 1,220-lb max load at 65 psi. 12" x 4" Steel wheel has a 5 on 4-1/2 bolt pattern and a corrosion-resistant galvanized finish. Beveled stud holes keep wheel secure.I'm glad to see I have an option to garbage bias ply 4.80x12 trailer tires. I've tried a lot of them over the years and always the same result, poor quality, ride, and terrible tread life. My last set of bias plys on a 2 ski pwc trailer were already down to the wear bars in a year and maybe 1000-1200 miles.
Ordered these galvanized wheels and kenda radials and as always etrailer got them here very fast and well packed. Took them to my local tire guy and he balanced them. Didn't take much weight and watching them spin showed a straight rim and tire. Installed them and was shocked the first trip to the river. Zero vibration from the trailer! Bias plies seem to bounce and transfer it to my truck through the hitch. These tires are smooth, no trailer bounce, pull great, and I don't see my yamahas vibrating in the rear view mirror.
Fast forward a few months till now. I probably have 5-600 miles on them. Still perfect, zero air loss, zero tread wear noted. I will buy these from now on based on what I'm seeing so far.
Great addition to my small deck over trailer. Load range D tires and a nice Galvanized rim. Shipped quick and packaging was enough that the wheels arrived clean, dry and undamaged. Best price around as well.
I haven't yet taken the boat back to the lake, but being in the mountains with switchback turns, the bias ply Harbor Freight tires just weren't cutting it. I blew obe out on the last trip! I expect these Kenda radials and galvanized rims to last a good while. etrailer is great to work with, and when I noticed a lower price, they gladly matched it. I will continue to buy from etrailer, and Robert was very helpful!
Shipping was extremely fast. Tires fit and look great on my small camper.
Overall nice for the price. I wanted to upgrade to radial tires after a blowout an the freeway with bias tires.
New Wheels, Tires and wheel bolts.
Tires look nice. Low quality galvanized coating on the rims, but typical for Chinese product.
Great tire and wheel combo. Have had them for about a year and no issues. They still look new.
I ordered and received a spare tire and rim. It fit just fine and was at a good price. The order came in just a few days. I am happy with this purchase.
Needless to say this tire and rim size is not easy to obtain. Appreciate the good product and service. This wheel is as close as I can get to match the four that are on my Tritoon boat trailer.
Paul - 07/13/2022Tires came filled with the correct amount of air, ready to bolt on! Shipping was speedy!
Ericv was awesome in dealing with for this purchase. Tires arrived today and will be installed on the trailer tomorrow.
I received one correct tire(ST145R12) and one incorrect tire(480X12). Now have to send back and wait for correct order.
Fantastic price, great selection, and free shipping to boot. I needed new tires for a long ATV trip and wanted a spare tire as well (I know, I know, but I usually only trailer locally). I ordered these radial tires and rims pre-mounted which allowed me to use one of the old wheels as my spare. Everything performed flawlessly over about 600 miles and even held their torque specs when I checked them during and after the trip. The spare tire carrier compliments the galvanized trailer frame and rims and looks like it will hold up to the elements of the North East. All in all, I highly recommend these products and etrailer.
I purchased two of these tires and installed them on my Triton aluminum double watercraft trailer. They work and fit perfectly, I would not hesitate to purchase these again. Excellent product fast delivery, great service. Vey pleased.
I received galvanized wheels and tires as an upgrade for a very old boat trailer. The new larger radial tires on 12” rims are a great upgrade from the old non-radial tires on 8” rims. Tows smooth and easy on the highway with noticeably less trailer bang & hop on rougher roads at slower speeds. Super easy, super fast delivery. Awesome, thank you.
Grabbed a set of these wheels for my jetski trailer a year ago and they still rolling thanks again for great customer service
Great tires and rim. Great price. Very happy with purchase.
Definitely an upgrade in tire and wheel from original equipment and previous replacements. Put on utility trailer that hauls atv for hunting 130 miles each way at interstate speeds and includes off road hauling too. Included pics of old wheel/tire next to newly mounted tires from etrailer.
I installed these on my 5x8 utility trailer a year ago. They've racked up many miles on different types of roads. Gravel, highway, interstate...
So far I have not had a single problem with them.
I am very pleased with the speed that the wheels and tires were shipped to me. The quality is exactly what was described. I’m looking forward to installing them on my trailer. My only complaint is that one of the wheel and tire combo looked like it had been sitting around a while and the other looks like it was just assembled. There is no difference in quality just appearance. I’m still very pleased.
I just got the tire last night I don't know there was metal shavings where the galvanized had been put on tire looks good but we'll see
Wheels are better Loki g than expected and shipping was very fast.
George, from etrailer, just emailed me and asked if I would offer a review of the AM31202 galvanized rim and tire after 1 year of use. Sure, George, you seem like a nice guy, I'd be happy to give you my thoughts:
I have very little complaint. So far so good after a year. I have yet to lose any air and they ride smoothly down the road. I do carpentry during the summer months, hauling all kinds of stuff all of the place, and they have not let me down yet. The galvanized coating is a bit rough, but as long as the rims don't rust, I guess it doesn't really matter.
Well, that's my review!
Peter G - 06/23/2020Straightforward ordering and delivery
Best way to buy trailer tires, quality was m7ch better than I expected and price was better than other places online. Will get all my trailer tire from here.
Great wheel, arrived very fast and it looks great. Price was great too. Very happy.
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