1st off, I must apologize for having neglected this particular branch of the forum.
5+ years of hardcore eZippin'
I have posted a wealth of experience and experimentation in the "E-bike General" and "E-bike Technical" but somehow failed to find "E-Bike Non-hub Motor Drives".
Something I intend on rectifying.
So 1st ... some links ...
EZip - IZip 20mph Upgrade $20!
Bicycle Safety - The Math of Speed
Re Gearing the EZips - Simple Mods
Sprocket Ratio = Pedal Assist MPH
Haro Express Deluxe Build
Homemade Battery Packs!
EBike Toolbox - Bargains! $
Many more and much more to come!
I will post more links in this thread ... so stay tuned!