The Xiaomi scooter I have has 2 brakes, but you only have direct control of one. The motor does some regenerative braking any time you let off the accelerator,

The Xiaomi scooter I have has 2 brakes, but you only have direct control of one. The motor does some regenerative braking any time you let off the accelerator, which I've found is enough to cruise down a moderate grade quite nicely. Sometimes on a steeper grade (which SF has some of) you need to reach for the disc brake. This essentially gives you a front and rear brake. To my knowledge all the scooters do some sort of regenerative braking. The Segway-brand scooters that Lime uses seem to ONLY have regenerative braking but those give you a little paddle to control it with. I wouldn't trust one of those to go down-hill, but anything with a disc-brake is fine.