I'm a life-long die-hard Michelin customer but I'm just discovering all six of my 1 1/2 year old under 30.000KLM's LT235-80R17 Michelin's are dry-rotted, not good! After hitting some road debris going through Knoxville on the way to Florida this winter I replaced all four of my fiver's tires with Goodyear 614 RST 235/85 R16's and so far I'm very impressed with them. According to my research done on them with having 14 plies and a specific tread they should hold up very well and as far as Michelin is concerned I'm waiting on an answer to what their going to do for me on these P.O.S. rotting tires I now have.