I've been wondering why there are not more axial flux motor ebike projects around. I understand high developing and manufacturing costs hamper large scale production of those motors, but at the DIY level, where people spend countless hours on awesome stuff, there seems to be no reason no to try it. AFPM motor promise more torque, less noise and less vibration for less weight - especially at low RPM. Or am I missing something here...
https://cafe.foundation/v2/pdf_tech/MPG.engines/HE_HP_electric_motors_Long_20090929.pdf
https://cafe.foundation/v2/pdf_tech/MPG.engines/HE_HP_electric_motors_Long_20090929.pdf