I went to a dealership yesterday to get rid of my wrench reminder. I asked about installing roadie wheels & roadie tune onto my XC ABS. The tech agreed that it should work perfect to compensate for the 19" front wheel, but he didn't believe the XC would accept the roadie tune. So, we tried to load the roadie ABS tune & it WORKS! I have not put a 19" on & run the roadie tune yet. Sorry, but I plan to redo my suspension first. However, I feel confident that I'll have a set of roadie wheels soon. In theory, load the roadie ABS tune & install mag wheels. Load XC ABS tune & install spoked wheels with knobbies of course.