I intend to convert the missus's step through Giant bike to kit electric. being of the more mature years she dreads riding the bike on anything except a flat. To this end we rode the whole of the two canals across France two years ago over a couple of weeks ! So she's not fully adverse to the bike. Our use is mainly while out and about in our camper but our range is limited by her reluctance to take on inclines and longer trips that can be accommodated without exhaustion. So the plan is to convert her bike but what is / are the best kits? We would hope for about a 25 mile endurance which is 50 for a round trip and being step through then needing a flat pac battery etc. My current thoughts are on a middle mounted motor as they seem to have a better press than hub motors ....is this so? Any help , suggestions etc most welcome!