How fast would a 72v 4000W ebike go?
So, how fast is a 4000w ebike? On private property or closed circuits, a properly tuned 4000w electric bike kit with battery can reach speeds of: 80–90 km/h (50–55 mph) depending on load and terrain. With pedal assist, even higher short-term bursts are possible. Generally, a good electric bike will have a motor with a power output between 250 and 750 watts. Bikes with motors in this range can reach speeds of up to 25 kilometers per hour and can easily tackle hills and other challenging terrain.It can be propelled up to 15. Its electric motor: must have a ‘continuous rated power’ output of no more than 250 watts.