My wife is strongly considering an e-bike for herself after seeing how useful my Woosh Big Bear has been for me. She doesn't drive, and an e-bike would really help her to get about. She has an ordinary folding bike with 20 inch wheels, which I'm thinking of converting for her. This is the model: http://www.halfords.com/cycling/bikes/folding-bikes/mizani-city-unisex-folding-bike She needs a setup that has a lot of torque as we have a fair few hills round here and she weighs about 17 stone. I think that something such as a 48v Q128h motor paired with a 20a controller would meet her requirements. I'm thinking of the following setup from BMSBattery: The 48v 201rpm Q128h rear motor in a 20 inch wheel: https://bmsbattery.com/ebike-kit/776-q128h-48v800w-rear-driving-e-bike-motor-wheel-ebike-kit.html The 48v sinewave controller with included PAS, throttle, LCD etc.: https://bmsbattery.com/controller/698-sine-wave-controller-for-09-case-controller.html The 48v 12.5ah case-08 bottle battery: https://bmsbattery.com/ebike-battery/817-48v116ah-case-08-bottle-panasonic-battery-pack-battery.html Plus a pair of torque arms. If any of you knowledgeable forum members could give me your opinions on this setup that I've chosen and if you could tell me if this setup would work okay, it would be much appreciated. Thank you.