I bought one, thought I mastered it, ended up in the ER, sold it. Onewheels require a full face helmet and pads. Even under ideal conditions, the device can fai

I bought one, thought I mastered it, ended up in the ER, sold it. Onewheels require a full face helmet and pads. Even under ideal conditions, the device can fail of function different than expected causing the rider harm. I was riding mine off a 2-3 inch curb, which was on a familiar path I took daily, when the nose slammed and I flew off fracturing my rest. The sensation of a OW is amazing at low and high speeds, but the risk isn't worth the reward.