If you are looking for a electric bike this would be the one to get it is a 1000-watt electric bike. meaning is gets around 30 miles a charge and 48v meaning its max speed is around 26- 30 miles per hour used this bike while in college. Nothing is wrong with this bike and should/will run functionally when received.item is certified to UL 2849 standards and be able provide documentation showing the certification upon request