Two things I learned as a paid motorcycle messenger (for a couple years just before fax machines killed that business):
Auto drivers often do not mentally register motorcyclists in the same way way they would another car. So it’s best to keep in mind that “all cars are out to kill me” and to drive accordingly, e.g., drive offensively (not defensively).
In an emergency panic stop, you must be mentally prepared to entirely dump and abandon the bike. You can never know what’ll happen, but it’s usually better to dis-attach yourself from 500 to 1,000 pounds of cartwheeling metal than to hang on.
For good reason.
KE = (mv2)/2
Most of the mass is in the bike ... separate yourself from the bike, and you separate yourself from most of the energy ...
Ever seen a modern racecar disintegrate in a crash ... then the driver pulls himself out of the capsule and walks away?