I need new tires, Advantages? Dis?

Same as a wheeling tire. Radials won't flat spot as bad as bias tires, but generally a bias tire will hold a little more weight. A really good quality radial will hold the weight though. Just remember bias are less money, and it's just a trailer. Goodyear makes a great radial tire, but you'll pay for them. I use bias and radials on my personal trailers. The radials wear a little better (more even) but the bias tires have lasted just as long. Out of the trailers I sell, they are kind of split. Utility trailers (open deck, car haulers, landscape) most the time (90%) come with bias tires. Dump trailers usually come with bias unless they are the bigger 14k dumps then they come with Goodyear radials. 90% of the enclosed trailers I sell come with radials, only the super inexpensive ones come with bias. Horse trailers seem to always come with radials. This is just what I see out of the trailers that I sell. Don't know if this will help you at all, but maybe.

I've had bias plies on my car trailer for 12+ years. I like 'em, they don't give the trailer the squirmy feeling that radials do. The only downside I can think of is that they are easier to puncture, although I've only had one flat in all this time. If you tow it off-road all the time where there are sharp rocks, you will probably poke one.
Travis..

I bought bias.
They were 10$ each cheaper then radials :)

I bought bias.
They were 10$ each cheaper then radials :)
I don't think there is anything wrong with running bias tires. And like I tell people, "It's a trailer, not a European sports car."

I run bias ply right now but I can't give any feedback on radial trailer tires 'cause I've never run them. One of the most important things to remember about a bias ply is to warm them up before hitting the highway. Taking a cold bias ply up to 65-70mph right away is really bad for it.

Good question. I would think a person could put more miles on a radial but most trailers tires are replaced due to dry rot not because the tread is thin. I have been told the bias tires pull easier. It makes sence.That being the case, would it be enough to get better fuel economy?

I heard about the warming them up too.
At least thats easy for me, its many miles before I can get out of town to hit highway speeds.

Also, balancing, who balances their tires?
I put Airsoft pellets in the new trailer tire, figure if it can do a 40+ swamper a 26 inch trailer tire should be easy.

Well my trailer came with bias ply tires. Even when empty, it always felt "heavy" while towing. The trailer only weighs 1500lbs or so. I just put four new goodyear radials on and they definitely made a difference. The trailer felt like it lost weight. I haven't had a chance to really pull it with any weight with it yet, but based on the "feeling", so far I prefer the radials. Also this isn't my first trailer towing experience and of all of the trailers that I have towed, I prefer radials. jmho.

I just put radials on my trailer this go-round. They're my first set of radial triailer tires, and truth be told, I was a little skeptical.

These tires changed the whole personality of this trailer. I love them. They're so much smoother it's really amazing. It's especially noticable on my 1/2 ton tow rig, not quite as dramatic on dad's F350.

I ALWAYS have my tires balanced at the tire store (Discount Tire), and it makes a huge difference on how they wear, and how they ride. I take them in once a year (when I re-pack bearings) and have them re-balanced.

I'm sold on them, and I WILL buy another set. These have been really great.

I have the Green Ball 225/75/15 radial trailer tires from Discount Tire. One of my buddies just put some Good Year Marathon tires on his trailer, he likes them a lot too. I just refuse to buy Good Year tires (too many bad experiences)

I have been told the bias tires pull easier. It makes sence.That being the case, would it be enough to get better fuel economy?

You've been told wrong. Radial tires have less rolling resistance than bias ply tires.

Which ever way you go make sure the tires are real trailer tires.

I wouldn't run a bias tire on my trailer. I have had blowouts with bias in hot weather (at half their load rating). My radials (I run goodyears) have never blown out even being overloaded and running 75 MPH. JMHO :D

i like radials they seem to pull nicer and they don't overheat and fly apart as easy as bias. but i would stay away from Good Year Marathons they are garbage they came stock on 4 different trailers i have owned and even balanced the sides wear out of round and start to thump.