> Ok, so I'm pulling apart a Znen 150T-E to turn into an electric scooter....
Huh. So googling Znen 150T-E gives me pictures of... electric scooters. So I'm confused. Don't you already have an electric scooter? Anyway, with regards to brakes, yes, please make sure you have plenty of (conventional) friction braking available. It's a safety thing. Electric motors (especially A/C motors, but BLDC too maybe depending on the controller) *can* "regenerative brake", i.e. brake with the motor by putting electricity back into the battery but this effect only works *above a certain RPM*, it decreases in effectiveness as you slow, so expecting electric braking to be effective in traffic would be very very dangerous.