Comments by "geemy" (@geemy9675) on "Lucid Air Rear Motor - Does Size Matter?" video.

  1. it would be nice to see the same level of technology in ebikes...I'm wondering how light a 750W motor could get. with very high gear reduction through harmonic drive or two stage planetary gear reduction you could have a tiny motor that would generate high torque and the motor would be able to deliver 750W from a very low speed up to 28mph. a 27in bicycle rotates only ~350rpm at 28mph. if you have 7*7 gear reduction you have a motor than an spin 17krpm and a torque multiplied by x49 or even 5x5 and 8750rpm no need for multiple speeds, just a flat 750W power band from a few mph to 28mph. a lightweight rear hub motor and you can delete the freewheel to save weight and have Regen.
    1
  2. amazing tech but they could go one step further and make even smaller motors and put one on each wheel no more differential and torque vectoring
    1