72v 60ah 2000w ebike, plenty of power and battery life. 50 miles per charge with just throttle. 80+ miles using level 1 pedal assist. Top speed of 55 on flats. Has enough power to go up steep hills at 45mph. Great for off road and on road use, compares to a surron or any other e dirtbikes. Pedal assist is not attached because i do not use it only throttle. Great bike with only 200 miles on it. Miles will go up as this is my daily transportation to work. 16+ miles a day with no issues or error codes. I have well over 1600 in it. I Don't know too much about this bike.My husband build it , and that's all I know. He bought all the parts on amazon.