I must chime in with Crewdog in saying that I too grew up riding dirt bikes but that was many years ago. I bought my XB12R a month ago and it was my first street bike. As everyone else has said, not knowing this bike and not knowing your own limits is extremely dangerous. Perhaps the most important thing is being real with yourself and being mature. If I were your big brother, my concern would be driving experience as riding a bike on the street takes a great deal of anticipation and reading of the current/future traffic picture. The MSF riding class will certainly help but the rest simply comes with driving experience.