mvly wrote:Not to thread crap, but unless you got some hard data, I will call this bullshit for now. No doubt it looks like.a clean build, but other than that, I don't see what is special.
mvly = f*cking retard.
This is like a hubmotor for a car fitted to a bicycle. This should make for the most powerful hubmotor bicycle that has ever roamed the streets.
For perspective, a 9C has 169.6cm^2 of active flux area.
Johns new motor has 423.9cm^2 of active flux area, and that area is on a 35% longer moment arm.
In the worst case it should do the output of about about 3.3 of the 9C motors in that single motor, and since a substantial amount of the resistive heat loss in a 9C is from the end-turns, and you've got 3.3x 9C motors worth of active magnetic material with roughly 1.35x the increase in end-turn loss over a single 9c, I'm predicting it will be more like 4-5 9c's worth of motor potential in that back wheel.
And just a single 9C can rip pretty damn hard when driven right!
This thing should fly!