A loose rocket would surely ruin your day
Propulsion engineer? Check. $750? Check. Battery to arm ignition switch? Check. Nitrous-Oxide? Check. Left brake lever [once used for slowing down] now turned into go fast trickery? Check. Appointment for colonoscopy? Ignition!

I see two serious issues here: a) the guy is riding a rocket propelled bicycle with nothing more than a raggedy jumpsuit and b), that man is in a very vulnerable position if said rocket propulsion unit dislodges itself from the bike frame.
Read More Hat Tip to Jake


Darn,i am not going to speculate on what would happen if the rocket propulsion unit dislodges it self and shoots backwards.
I will… this is how goatse was started!