I am about to purchase front and rear tires for my XR650R. I have been running Trials tires for about a year but lately I have been doing a lot of high speed desert riding on fire roads and rocky terrain. The trials tires seems to break down when you have a combination of speed and continuous hard pack roads and rocks. They have a very long life span in intermediate forest type conditions. I have been looking at the Maxxis IT and IT Desert tires. The Desert version of the IT cost more but claims to be more resistant to chipping and tearing in the rocks. I know the IT is a good woods tire but am not sure how it will hold up in the desert. Have any of you tried the IT Desert yet? If so, is it an all around performer and does it resist chipping, tearing and chunking? I am not dual sported so that is not a consideration here.