Airbag jackets? Your thoughts? (now other gear questions)

[mrbaggio]

No one is arguing that the rider doesnt have a projectile like motion after he leaves the bike, dummy. I am saying that as the bike rotates over the front wheel (back wheel coming up and over), like a one armed catapult. Lots of tangential speed could be built up there.

You are missing an additional force to rotate the bike/rider. The only force involved, if I understand your idea, is the forward moton of the bike. The rear end of the bike will not rotate faster than the bike was traveling if the front end was to come to a quick stop.