I get 20 miles for a full charge. I have a 2017 but a battery with the same 3.9kwh rating as the newer ones. I don't ride it on pavement though. Probably should have tried before changing the rear tire. Level with street tires and the speed you ask maybe 30? People do put a watt hour value per mile figure for their usage on other bikes. KTM is honest about the 3.9 kwh for the battery capacity as I have a meter to see how much electricity is used to recharge it and have gone over 4.0 when depleted completely.
