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  1. J

    Axle for regular wheel on hub motor bike

    I have a Propella 9S Pro eBike. It has a rear hub motor. I want to switch to a Bafang mid motor, from a previous bike, as it has more torque and better battery life. The Propella has dropouts for a hub motor. The dropouts accept an axle that has flats on it. The axle diameter is 12 mm, and...
  2. J

    Tranzx M16 GTA Motor Bottom Bracket Lock Ring Thread Direction

    Well, the teamates at Bikesupportspecialist dotcom were wrong. It is left hand thread. They are sending a replacement lock ring because I probably damaged the original. Kudos to Mike there.
  3. J

    Long time reader, first time poster

    Wow, lot's of replies in a short time! An active group. :)
  4. J

    Tranzx M16 GTA Motor Bottom Bracket Lock Ring Thread Direction

    I want to get a definitive answer on the thread direction of the bottom bracket lock ring on the Tranz M16GTA motor. The bike is a Raleigh Sprite, 2018 model. Bikesupportspecialist dotcom (Alta Cycling Group LLC) tells me that a consensus of 6 teamates say it is "regular threaded", but they...
  5. J

    Long time reader, first time poster

    Hi, I'm Joe from Massachusetts, US. Years ago, I was given a broken Ford Thinkbike, which had been used by Leominster Police Department. I bought a generic controller and built and programmed a PIC microcontroller board to handle the throttle input, pedal torque sensor and brake cutoff. It...
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