If you have always wondered how fast you can really ride with eBike Tuning, you are invited to try our speed performance calculator on badassebikes.com.
General answers are not possible, because the achievable speed depends on some variables. Physics can provide a relatively rough estimate of the interrelationships. Our online calculator, adapted by kreuzotter.de, clearly shows the achievable speed depending on the power input or vice versa the necessary power for a certain target speed. The power is assumed to be the power of the overall system, i.e. eBike plus driver.
Anyone who has ever done an exercise ECG may know how hard it is to kick 400W. The 650W reached with it are not even enough for 45km/h.