After doing research, it looks like a 2 speed helps a lot for these. Either that or a current limiter. Current limiters should help with efficiency a lot and extend the life of all your parts, because stalling / near stalling on outrunners is very bad.
For a pedaless tradpole I'm building I'm going with a current limiter to limit my system to 3600 kw max, probably will do 1 speed since I'll be using a belt. It won't be a true current limiter though, I think I'll have it reduce throttle when the current limit is exceeded for longer than 1/10th of a second. The tadpole will be higher and wider than normal tadpoles so it can handle the higher speeds on the streets safer.
For a pedaless tradpole I'm building I'm going with a current limiter to limit my system to 3600 kw max, probably will do 1 speed since I'll be using a belt. It won't be a true current limiter though, I think I'll have it reduce throttle when the current limit is exceeded for longer than 1/10th of a second. The tadpole will be higher and wider than normal tadpoles so it can handle the higher speeds on the streets safer.