Apparently, the battery powered bikes have the same gyroscopic stabilization at certain speed as motorcycles. In Santa Cruz, I saw a kid going downhill in traffic on an electric bike standing up on it with one foot on the seat and the other foot on the handlebars steering WITH A CELL PHONE TO HIS EAR. I estimate he was going at least 30mph. Santa Cruz has an active 'Future Quadrapalegics of America Club' due to the many athletic endeavors, with the wheelchair crowd to prove it.
Like this, only no helmet in blue jeans and t shirt
#humor