I like the mid drive on my Dragonflyer as it makes up for having 20 inch wheels all around. It's quiet, is at the midpoint of the trike allowing for have the pivot point for the shock in the middle of the trike. Seems to have enough gears as I can get up most hills in my area without stopping. 3 in the front and 8 in the rear.The trike has a few years on it but was a bit ahead of the rest at that time.