...and just an addition to post #20,
not only are the wheels pre-inflated to around 40 psi, (to both keep the tyre bead seated properly and to exclude air so no corrosion invasion, remember the tyres are inflated with nitrogen), but you may notice that any ground engineer worth his salt will ALWAYS deflate the tyre prior to loosening the wheel nut.
That wheel nut may be the only thing holding the split-rims together, it has happened.
Likewise, they only inflate after installation of the wheel nut!
Now that's calling on memories of long, long ago!
Cheers...FD...
