A bias trailer tire generally has less sway and bounce during travel, due to a stiffer sidewall. Bias tires are also sometimes less expensive than radials, which make them a good choice if you only plan on short trips with your vehicle.
A radial trailer tire normally has longer tread wear for the mileage, because they have reduced heat buildup than bias tires. You will also experience greater load capacity, less road noise, increased gas mileage and greater tire flexibility with radials.
If you are unsure which you need for your purpose, just call our sales team at (888) 590-6793 and we will gladly answer any questions you may have.