Okay I have a question for all you tire gurus out there. I have a problem with the tire/fender gap on the 3s spotted so far. If what the Mad Magyar says is correct, the tire diameter of both the 18 and 19 rims is about 26.4". If I increase the tread width and hold the profile constant OR hold the tread width constant and increase the profile, I can achieve an overall increase in the tire diameter with either the 18 or 19 inch rim. This would help in filling some of that fender gap. What say you about this strategy for correcting fender gap? Conventional wisdom says that tire diameter should not be increased by more than 3% to avoid brake damage. Second question: running a larger diameter tire than 26.4" could affect speedometer readings. Does anyone know if the speedometer reading on the MS/X is electro-mechanical or is it based on GPS? If GPS, tire diameter has no affect on readings. Maybe this should be in a thread of its own.