"world's fastest anything" implies organization and agreed-upon standards.
the world's fastest indian isn't a title or record...it's just that the world's fastest motorcycle under 1000cc happens to be an indian.
there are a lot of different configurations available to MB'ers, so "official" definition is difficult.
without standards, it boils down to "who can strap to largest engine to a bicycle frame?"
imo, it sounds like you want to run a motorcycle-with-pedals...an unsafe one, besides. the usfra says if an MB ever exceeds 60mph they'll want to see speed-rated tires...which i think don't exist.
if you (sincerely) want to promote the motorsport, define the motorsport and compete within the parameters. otherwise the title you seek is an empty one.
to compete in landspeed, and declare yourself the "world's fastest" you'll also have to declare "compared to what?"
i happen to hold a "record" for an under-35cc motorized bicycle...32.4mph isn't impressive, but i was more concerned with breaking ground for MB's...which i did...
www.saltflats.com loved the idea of a bicycle chassis for small-engine (and electric i bet) competition.
the door is open, the possibilities as yet unrealized...usfra is structured such that a growing MB contingent could eventually lead to a new & separate vehicle-class: Motorized Bicycle...that would rock my world...anyways...
it was almost 2 years from the moment i said i wanted to race until i actually heard those magical words "augie, the course is yours." it wasn't easy but it was worth it.
you have a long way to go from wanting to doing...and as Pablo says, you're gonna have to prove yourself informed, organized, and capable...trust me, sponsorship is no free-ride.
that's all i feel like typing on this dinky mobile keyboard...hope it sheds some light on the issue