I am a very big fan of bias-ply tires. I have 650-16 Firestone Deluxe Champions on my truck. These are new tires with a new rubber compound. They do not flat spot and do run very nicely. Like all bias type they can track a bit if they get in a groove on the road. I keep my truck away for 4 months during the winter and have never encountered flat spotting. I also cruise at 55 mph and they are very smooth.
I originally had an old set of bias-ply (forgot the name) and yes they did flat spot. The new compound they are using is faer superior.


1949 Chevy 1/2-Ton
"Sedgewick"
In the Gallery
1989 Caprice