Alternative to electric motorcycle runs on thin air

[77south]

I used to work in a SCUBA shop, (10 years ago) most SCUBA tanks need to be visually inspected every year and must take a hydrostatic test every 5 years.  (a hydrostatic test involves filling the tank to capacity while in a water tank, in order to tell if the volume of the tank changes as it is filled.  If it does change, the tank is bad.)

[thought]

another one that also runs on air?

[Buckethead]