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post #11 of 16 Old 06-04-2009
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Originally Posted by DBlair8809 View Post
I keep hearing people mentioning trailer tires of the radial and bias variety. What are the benefits and drawbacks to either type?
One of the issues is that bias ply tires often develope a 'flat' spot after sitting for a while, it normally goes away in the first mile or so but can be extremely annoying. Radials are often claimed to have a longer lifespan.

Those are the only advantages of the radial for trailers I know of, there are others that apply to vehicles, but they don't all apply to trailer use. on vehicles they have the same advantages, plus they'll provide a smoother ride all around and generally provide better traction.

In my opinion, stiffening the sidewall for trailer use reduces the advantages of using the radial in the first place.

Ken.
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post #12 of 16 Old 06-04-2009
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Single axle---trailer tires

Dual axle ---raidal tires as long as they meet the load requirements.

Run either tire within 2 psi or higher than their rated max load rating cold.

Rick
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post #13 of 16 Old 06-04-2009
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"purchased a passenger car tire to replace a flat"
One tire only? If you don't replace both sides of the axle at the same time, there will be problems regardless of the tire types. Then, since it was a newly mounted tire, there's no way to know if the rim was damaged, the mounting was improper (tire cord torn during mounting), the air pressure wrong, the torque on the lug nuts wrong....
So at least five things may have been wrong enough to cause that failure. Can't say that the sixth (passenger tire) alone was the problem.

Michelin and Goodyear make radial trailer tires, in some sizes at least they only make radial trailer tires. If I had to choose between no-name Chinese bias play trailer tires, and top brand reliable trailer tires that happened to be radial...I'd trust the top brands. And yes, find the extra dollars to pay for them, one way or another. I'd rather take a Nantucket Sleigh Ride than ride on Chinese tires.
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post #14 of 16 Old 06-04-2009
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Radial vs. Bias Ply: As I said in my previous post, I have both. I believe the bias ply tires give a steadier towing situation. The radial trailer tires give a softer ride to the trailer (accommodating bumps better), but this same flexing movement is adverse to good trailer handling (in my opinion) since sideways movement of the trailer in a curve or emergency situation is not good..the movement can impart twisting motion to the tow vehicle, which could help break the tow vehicle's traction in marginal conditions. That said, I don't anticipate taking the trailer radials off the motor boat trailer.
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post #15 of 16 Old 06-04-2009
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Quote:
Originally Posted by timebandit View Post
You didn't get him to pull over to see what the problem was
By the time I noticed the trailer acting squirrely to the time the tire jumped off the axle I could not have called him by cell phone. I will also admit that I believe that they were going too fast and had unfounded faith in their trailer.

HS, yes, only 1 tire was replaced which was also a no-no. I also agree with you that the passenger tire was only 1 of several potential contributing factors to the trailer accident I described. I know that my friend had become a bit cavalier about trailering his boat and was just being cheap when it came to replacing the tire(s). This incident was a wake up call for him and he realized that we really dodged a bullet since the rogue tire did not jump into the oncoming lanes of highway traffic which could have been fatal for another driver.
I also learned a lot of trailering lessons from this incident - the first is never let your guard down or assume that everything will work as designed or intended. A standard checklist of things to check BEFORE leaving your driveway with a trailer would probably cover the rest.

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post #16 of 16 Old 06-04-2009
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Always check yur lug nuts before towing.

I have had the lug nuts come loose on the side that a power boat was parked when I left the trailer after launching.

Good thing I always get out the star wrench before towing.

Tire pressure should also be checked often. A tire should never run hot. Pull over and check tires and boat after a few miles of high speed towing.

Rick
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