Has anyone else had this happen? I was riding my RadRunner Plus yesterday (I've owned it since June and have about 200 miles on it) and I was coming down a hill, no power being used, and my tire literally just fell off! I've sustained multiple injuries and broke my helmet, as the impact was so hard. I'm not sure if this is a manufacturing issue or an assembly issue? My brother, who is in the ebike business, encouraged me to get ALEOED 2 pcs bicycle hub safety washers, but if I need these why does the bike not come with them? Hoping to get some answers, as now I'm scared that this will happen again.