When you realize that slow eddy is a liar and a fraud that pretends to be an expert on every subject this company might interest you if you want to understand current(pun intended) electric bike motor technology:


https://www.electricbike.com/crystalyte-hub-motor/

"High Speed (S) or High Torque (T)

One of the decisions you will have to make if you buy a Crystalyte is whether you want to go with a motor wound for torque or one wound for speed. Some of the following factors need to be weighed before making a selection appropriate to your needs:

Wheel size

Battery pack voltage you anticipate running

Amperage requirements/limitations

Terrain and riding style requirements: will you be climbing a lot of hills or
primarily using it on moderate

How big of hills do you ride? Off-road or blacktop? Aggressive riding style or around town laidback cruising?

Gearing will change depending on what the size of your wheels are. A 20-inch wheeled bike will be geared lower than a 29er, which will be geared super high. The more amps and voltage you pump, the more likely you should go with a speed motor for top speed since torque will not be much of an issue. However if your daily commute involves climbing steep grades you are better off with the high-torque motors and smaller wheels, and may want to consider limiting the volts and amps to keep from smoking your motor.

Rule of thumb: The HT is more efficient at lower speed; the HS is more efficient at higher speed."