I have had Titan R4's on a B7500 for 10 years and an L3200 since new 4 years ago. Never any problems. I have no experience with Carlisle tires on a tractor BUT we have used their trailer tires on utility trailers at work. We have about 20 utility trailers (3,000 - 7,000#) plus a few deckovers and landscape trailers. These trailers aren't just used for a semi-annual mulch run. They get thousands of miles on them and run at 70 MPH or so on the turnpike. We had so many failures of the Carlisle trailer tires that we will not run them any more, and wouldn't use them if we got them for free. The tires were not car tires. They were trailer rated tires. It happened with almost all the Carlisle tires we had and was no fluke. The tires were junk. For that reason I would not try the Carlisle brand in any application.