Zeev's Turnips Patch-No Politics (ZEEV)

[brainlessone]

i think this might help in understanding tires.
http://www.dfrc.nasa.gov/DTRS/1995/PDF/H-2045.pdf

and this for pressures:

they are at 350 psi

http://techreports.larc.nasa.gov/ltrs/PDF/1997/tp/NASA-97-tp3626.pdf