I apologize for the wind noise. I had the mic settings too high. The X5 went 50 mph with incline and 53 mph with decline on the speed run road. Towards the end of the video I rode up a street that had an incline at least double of the speed run and was still able to hit 47 mph! I also managed to get 53 miles of range with 30% battery remaining. This was achieved with spirited riding! Budget Beast!