G'day John...electric is very cool, alot have a preconceived notion theat they are niether fast of have any range, both are totally incorrect. One thing that is correct though is that it is very very expensive process to build something with decent power and range in comparison with your HT powered bicycle. To answer you question regarding range of my bike, i could easily get 40km from it on a charge, more if i dropped my cruising speed bellow 45km/hr.. I am about half way through uploading a ride video i did today with fellow Endless Sphere member, we traveled 23km today average speed was ~44km/hr to speed was 68km/hr i used 12ah of my 20ah battery pack. I live in the hills of Perth Western Australia, most wouldn't have seen hills like i these I think?... unfortunately both Matt and my cameras shut down mid point of the ride so the big hills we tackled were n't shot, very bummed about this, the video though will be viewable very soon if you check my worklog for the Custom HXT Cruiser in the electric section of this forum in an hour or so you will see a link to it, i have combined video from both cameras, you will see Matts 500watt hub motored MTB also, if you can afford electric and don't need to travel 100kilometers every ride you will get something on the road with modern tech Lifep04 or lithium polymer batteries for under 1500 bucks that would give you the range most would be happy with...Big difference from a 200 dollar HT kit slapped on a Walmart bike i know but thatrs just how it is, IMHO though its worth every damn cent ;-)
All the best...
KiM
p.s most of the off the shelf kits these days are 'plug and play' you need very oittle electrical knowledge mate, it might appear i am clever truth is, this w i struggle to even put batteries in a camera at times, all the info you need is laid out on Endless Sphere forums...