That's impossible. I can't do the math here in my office right now, but you would have to spin your wheels insanely fast to even approach the kind of centripital force required to open the valve. With a schraeder valve, you're fighting both a spring and the air pressure in the tube. I highly doubt you could get the valve to open on it's own with anything short of a NASA vomet comet ride.Originally Posted by The Fixer
There is also no such thing as centrifugal force; just centripital force and conservation of momentum.