Im 6 foot 2 and fit real comfortable on my Aventon Pace 500, raised the seat up a bit and still have plenty of room to go. Very impressed with the ride quality and comfort. My Pace 500 I don't believe is the step through though, its the flat top bar. My wife is shorter than me and rather than get an Aventon Pace step through we are looking at the Rad Rover entry level which is basically a single speed bike with a small motor. We test rode one and its really smooth and the price is great.