Search results

Date Relevance Most replies

  1. samatman

    Rear Gear Generator

    That I've seen as well. There's room in the Packa Genie's frame for a mid-drive, and I've given some thought to making that mod instead, haven't ruled it out. If I were going for pure resistance, I might want to make or modify a rigid chain tensioning wheel and surround it with...
  2. samatman

    Rear Gear Generator

    There would be no mechanical drag. Perhaps a bit of magnetic reluctance when the armature is completely unpowered, due to magnetizing the sprocket, but that's okay. Stator: around the sprocket. Rotor: freewheeling rear sprocket. Mechanical drag: none. I have no idea why one would use the...
  3. samatman

    Rear Gear Generator

    The bike loses traction on the pedals around 16mph and hits a cruising speed of 28mph unloaded/level. That implies 1.75 teeth per one tooth on the current front sprocket, so closer to twice the diameter than not. I'm fairly sure that would bite the ground when taking a sharp right. I might...
  4. samatman

    Rear Gear Generator

    Thanks for the reply! I'm ok with losing most of the efficiency, because my motive here isn't to propel the bike with leg power. I went into a bit of detail about that in the first post, briefly: I want an electric vehicle which behaves more like a pushbike, as a matter of user-interface...
  5. samatman

    Rear Gear Generator

    Hi! Long-time lurker, first time poster. A month ago I purchased a Class 3 cargo bike, rear hub with a cassette and derailleur. Overall I'm very happy with this choice. The bike, a Blix Packa Genie, has a cadence sensor and thumb throttle. I'll end up replacing the throttle with a...
Back
Top