Most Interco tires are bias ply. The SSRs are only in radial and the TSLs have a separate radial version (slightly tighter lug pattern, but still more than the SSRs). The new TrXus Mud Terrain and their tacky-ass all-terain are radial only. Not sure about the Thornbirds (too lazy to check)
The Thornbird is only offered in a bias ply version. That being said, are there any advantages of bias ply over radial, or vice versa? I was told that radials wear better on the road. Kind of late now though, I just bought a set of 35 x 12.20 x 15 ProComp Mud Terrains today. He he he. Now the Bronco might be a lil bigger than your Dodge Jason. Now all I need is gears, a locker, and lots of driving skills. = )
Bias ply tires have the advantage of tough sidewalls while still offering tons of sidewall flex. Much more than radials. The main problem is that the bias tires wear faster and track poorly on the road compared to radials. That is why radials were created, less wander on the highway.
Are Pro-Comp Mud-Terrain's bias ply or radial? If they are bias ply...does this mean they will have "sweet spots" after sitting in the same place after a while. I'm not sure that this is the correct term..but I'm just repeating what someone said about the Swamper Thornbirds. What I mean is...will there be an indention in the tire where it has been sitting?
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