EXACTLY what mine done!!! left on 7000 mi.trip (solitary sturgis & then some ) started felling a woble/sway from side to side at 20mph.....chuckyellow one said:Seems like maybe they put out a bad batch!
My first set went the distance and then some. Really liked them. This set the rear tire began to form a bulge at just under 3000 miles.
I e-mailed Hal (bought the tires during his Christmas sale last year) and he said call the office and they'd work something out.
Paul H.