this what I was riding: this was me 4 days ago: Same brand of scooter that Bird/Lime etc use. It’s a Segway-Ninebot ES4. Has electronic front brakes that do 90% of the braking. Except when they don’t. Was riding down a hill that I’ve taken the scooter down before many times. Brakes had always worked as they are supposed to. Not this particular morning. Applied brakes and slowed initially at first, but then nothing. Looked down and the scooter had suddenly shut off, leaving zero front braking. Speed has quickly climbed to what I estimate to be 25mph headed downhill into an intersection- made the decision to steer it towards a curb which promptly slammed me face, left forearm, and left shoulder first, breaking my neck in two places and the middle of my spine. Thankfully, spinal cord is undamaged and aside from my left shoulder remaining numb, I have movement and feeling with arms/feet/fingers/toes. I consider myself extremely lucky. Smashed the bicycle helmet I was wearing. Can’t imagine if I’d even be here typing this out if I hadn’t been wearing one. If you ride one of these electric scooters with an electronic braking system, or bought one for your son or daughter, I urge you NOT to ride it down any steep hill. Loss of power can and did suddenly happen and with that loss of the ability to stop. There is a rear fender pressure type brake but is very weak compared to the regen type front brake so wasn’t used, nor do I feel it would’ve stopped me or slowed me enough to stop before the intersection. I’ve played it over in my mind hundreds of times and it was the best evasive action I could’ve taken given the sudden realization that the brakes went from working to nothing in an instant. If you use this type of electric scooter, walk them down steep hills. I learned the very hard way that they cannot be trusted to stop you. I had bought this for my 9 year old. He and I have gone up and down this hill dozens of times with no issues till this time, which nearly ended in a fatality. I am only glad that it was me on it, not him, when the power suddenly cut off. If there is any good from this, it is that I discovered this before one of my kids did. If what happened to me happened to one of them, I’m not sure my wife would ever forgive me. nor do I think I could ever forgive myself. I was just transferred out of ICU Trauma yesterday, but still on the neurosurgery floor for further evaluation to make sure I don’t require surgery. I don’t wish this on anyone. Yes, motorcycles are dangerous, though I think these type of electric scooters could actually pose an even greater danger as most, including me, didn’t regard this two wheeled mode of transportation any more dangerous than a typical bicycle. This was my first experience with electronic braking and I my trust in them has forever changed. E-braking with mechanical back up is a whole different ball game. Beware of trusting any vehicle that relies on solely or mostly electronic braking.