Great scooter. Powerful and easy to control. It has high clearance and for me a real life speed on a smooth asphalt )flat surface) is about 60km/h with about 80kg rider. Q-06 plus like any other electric vehicle has range that varies based on many factors. Speed is the biggest. I can get 15mi at top speed of 60km/hAt 20miles/hr off road on a bike trail i got 30mi range. If you are on flat asphalt surfacr with 15 mi per hour probably will get the advertised OPTIMAL 50 mi range. Very powerful scooter 2600W each motor. It comes with a single or dual motors off road or street tires.The only remarks I have is for the Q-08 Plus. The q-06 plus has many improvements in comparison. Seller is very responsive and helpful. Contact them if you have any questions.