Wich Voltage?

I would run 36volts and at least a 500/24v watt motor. That should make you fly pretty well. You can always throttle back, but if you don't have the horses you can't dream them up. Although I have just recently come to this conclusion. If you get a good controller from tnc the TNC Scooters - YK42-2 Product Specification will let you run 24v or 36v you could start with 24 and if that isnt enough get a boost by just adding a battery.