Radial tires: Pros and cons

[wernstriumph]

Hello all, I'm new to the forum.
     We've logged over 2000 miles on our popup this past year and it's time to change the tires (They are starting to show signs of aging). Does anyone run radials on their popup and if so, is there a difference in the handling? Good or bad?

[jawilson]

I've towed many different types of trailers in my 30 or so years of driving and almost virtually since there inception I've found radials to be better tires for everything, including trailers. The only drawback they have, that bias ply's don't seem to have, is that radials are more prone to "flat spotting".

Parked for extended periods of time radials can develop a flat spot where the tire contacts the pavement. Usually, after several miles of rolling the flat spot will work itself out, but sometimes it can be a bit more persistent. I personally haven't seen a radial that kept a flat spot, so I don't know if it actually happens, but I suppose it's possible. I've never experienced any type of flat spot on a bias ply though, regardless of how long it's been parked.

Other then that one advantage, I believe radials are far better tires (well, bias ply's do cost less).

[AustinBoston]

The single most important factor is never mix radials and bias ply tires.  This includes the spare.

For certain sizes of trailer tires, bias ply tires are available in higher weight ratings than radials.

Austin

[wynot]

I've towed many different types of trailers in my 30 or so years of driving and almost virtually since there inception I've found radials to be better tires for everything, including trailers. The only drawback they have, that bias ply's don't seem to have, is that radials are more prone to "flat spotting".
 
Parked for extended periods of time radials can develop a flat spot where the tire contacts the pavement. Usually, after several miles of rolling the flat spot will work itself out, but sometimes it can be a bit more persistent. I personally haven't seen a radial that kept a flat spot, so I don't know if it actually happens, but I suppose it's possible. I've never experienced any type of flat spot on a bias ply though, regardless of how long it's been parked.
 

I have found quite the opposite to be the case.  Bias ply and bias belted are notorious for flat spotting, especially when cold.  Nothing like driving my car years ago with 4 flat spots waiting for the tires to warm up.

[SpeakEasy]

I switched to radials this past summer. It seemed to me that the trailer tracked more smoothly with them.

I think they are probably worth the extra bucks, even though it is not a very big price differential.

-Speak

[wernstriumph]

Thanks for the info! I think I'll try the radials and see how they are.

[wavery]

If you're into slalom racing (or windy mountain driving), with your PU attached, radials are a must.