Compressed air bike

Hello friends

this is aman...

i saw an old episode of planet mechanics, national geographic channel
they made a moped which runs on the compressed air.
i have searched on net. a student of punjab engineering college had made it as his final year project.

also a car with this technology is going to launch soon, but the problem with it is that it should carry the compressor itself

i am trying to make a bike which will carry only cylinders and can be refilled at any air pump within reasonable rates.....

please help me in making this posiible...
thank you