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  1. travellin

    Copenhagen Wheel Thoughts

    The Copenhagen Wheel is compatible with 7, 8, 9, and 10 speed cassettes. It can be used on bikes with front derailleurs, making it compatible with bikes that have 21 speeds, or 24 speeds, etc. Superpedestrian explains Copenhagen Wheel compatibility in their Support Center article: All Things Gears
  2. travellin

    electric kits for the Brompton

    These kits use front hub motors with batteries carried in a frame-mounted bag. Grin Technologies. Two motor options, two display options, two pedelec options, and a number of accessories and batteries. NYCeWheels. Simple display and thumb throttle, and two battery options. They also sell...
  3. travellin

    Karmic Bikes on YouTube!

    Thanks, Hong. From the video and this post at the Autodesk forum, it looks like you're planning on using the new Max mid motor from Bafang. And possibly a full chaincase or belt drive. Can you comment? Matt
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