Always blame the tires, never the way they are driven. yesterday going down I94 in Wisconsin is was passed by a truck pulling a New fiver. He was a contract carrier delivering a new trailer with Indiana transport liscense. I was going 74 mph.He passed me quickly. Tires are rated in most cases and all ST tires at 65 MPH.Yes I know, they may have been Michlien ribs, but do you really beileve a brand new trailer would have them? So here we are, a tire that is driven in excess of it's rated speed and you want to blame the tire maker (China bombs)