Theoretically, of course, my bike has done 97mph/156kph. That was on fairly level highway with better than moderate wind and completely stock. I bought this bike for traveling and gas mileage. If I wanted speed, I would have gotten something else. It has no problem getting to and cruising at any speed up to 50, 60, 70, 80mph/ 80, 97, 113, 129kph. The top speed is certainly less than my last bike (Victory), but it was an inefficient v-twin and not as comfortable and fuel efficient as this bike.
I am 6'2"/188cm, 185lbs/84kilos.
LTjg USN ret.
MAT, Florida Southern College
BS in Pro Aero, Embry Riddle Aeronautical University