Last week I posted about choppy tire wear on tires anly a year and a half old, but with a lot of miles. Coincidently Had a trailer tire failure this weekend. Decided to put on Radial Trailer Tires and WOW what a difference. 175 80 13 on a '93 Trailer. At Highway Speeds, (and I do speed at times)... The ride is much more predictable and dips and turns in the road are much nicer. Does not seem to affect the ride nearly as much on tow vehicle/ 1999 Chevy Astro Van.