I have taken my XB9R to 8 track days ( about 1,000 miles of track time). The bike has been bullet proof. Coming out of the corners my bike can hang with the 600cc rockets, however, once over 90MPH they pull away. It all comes down to rider ability, my lap times are the same or faster then many individuals on 600 or even 1000 cc sportbikes from the big four. Other riders just smoke me so I could be riding a faster bike and still go slower than them. I'm not the fastest rider out there however, I still have a lot of guys with faster bikes coming up and commenting that they could not believe a Buell can be that fast.