So... I'm already plotting my next ebike build... Thinking of using a mid-drive TSDZ2 on my 700c hybrid town-bike, and a smaller/lighter battery pack, maybe 36V 10AH (360watt*hour). The TSDZ2 is torque sensing pedal assist, so no throttle at all, just a gain control.

said hybrid as it was shortly after I built it up a few years ago...



thinking if I electrify this, I'll ditch the front derailleur, and just run a 48 or 52T ring, and use all 8 rear gears with a wide range freewheel. right now it has 48T-38T-28T which is perfect for my out-of-shape, the 48:13 is about as fast as I can sustain on level without a headwind, and the 28:26 lowest gear can crawl me up most any hill. but with 300 or so watts of assist, I expect that will be plenty. I do wish they had a 52-42 for this middrive, its got a funny crank offset, so its not easy to use generic sprockets and maintain a decent chainline.