It is a safety device on most modern bikes and cars. Pretty much if the bike senses that it's not on the wheels anymore I.e. sliding along the road on the bags it will shut the bike down, the next time it's started it will go into a rich mode to prevent further damage, and trip the cel. This is not specific to the rocket... Just what I've found. Cpnvertibles have this to deploy hidden roll bars so if they roll over the occupant won't be crushed. Some even have impact sensors that do the same thing except they work on the sudden deceleration principle.