Have one VIFW (very important f'ing worry) about helium for tire inflation. Since it's lighter would you actually float over water or hydroplane and die? And what about braking? If there's no road contact anymore could I save the money spent on brake pads and fancy calipers? Thank you.
Also, if we pumped up the moderators with helium would they type with a higher pitch?
The answers to your questions are: Yes, piloting a hydroplane without a license is illegal in at least 18 states.
Braking is a controversial as well as a partisan subject. Some choose to brake, others do not. It's a personal decision.

Yes no road contact, and tires as well as wheels and kickstands would then become an option from the MoCo. Helium bike seats in custom colors would offset any savings, however.
I remain opposed to pumping moderators, since the side door does not give any clue as to what the inflation psi should be.
I learned how you did that - excellent!