I agree somewhat. I feel your distances are a bit short. I had a 3 mile commute which is just a bit shy 5 kilometers and I actually would do a 4 mile detour because otherwise it was just to short. It was a nice walk though. So your high end to me is just about where it gets nice and for anyone not in poor shape I would say it could go double so 10-20 kilometers. It could be im in some super great shape but I really doubt that. The basic idea I get though as I know I had this real long one that was like 25 kilometers. I did it for bike to work week but going both ways and man I was on the couch with my legs hurting. It was a great commute if I went in the morning when it was cooler and the commute was mostly flat but in that direction it was a bit more downhill overall and then where Im at I could bring my bike on a train to get back. So for me it would be about 20 kilometers for the e-bike. I actually have sorta wanted to get one because im getting old.