the numbers are all kind of stupid, to be honest. the range of an e-bike is infinite if it’s being pedaled and the motor is off. there’s a continuum from there to almost nothing if you’re going up a 15% grade in turbo at the bike’s weight limit - the battery would be toast in an hour (300 watts for an hour = 300 watt hours
) and you’d have gone about four miles.
as long as you can thoughtfully and easily
control the power output, add some of your own power, and understand the relationship of speed and grade to power required, you can vary your range from 20 to 100 miles on these bikes.