Got this bike going pretty well now. Mounted just the gear box to the frame. Not enough torque to ride a wheelie , but enough to spaz one. Manual up an incline is good. Both pedal & motor geared low so Spaztic will be good most 2 wheeler friendly places. . Top speed about 40 mph / 60 kms. Pretty quick - sounds like a dirt bike. It shifts like a dream. Love the NuVinci. Real mufflers coming soon.