I ride in the middle of the lane and cars still try to squeeze
me out. Worse still was this car that actually knocked my rear
wheel.
Anyway answering your queries, in school they teach the narrow
plank which is basically balancing your bike while moving at a slow
speed. Look at this another way it is to teach us to maneuver in a
traffic jam or red light but not when the traffic is moving.
A bike can't flip over at 50km/h, if that was to happen the rider
wasn't e-braking properly. And I always say, people who e-brake are
not good riders on the road. Why must you e-brake in the first
place?