2005 M450 on Ebay

[dentmac]

This thread seems to be hijacked - sorry I'll comment on the 450 hear then move to new Thread re TPMS

Most of the 450's run near or over 9000 lbs on a front wheel periodically so 105 psi cold is a reasonable safe figure.
Under 110 PSI and there is no static steering. (The ability to turn the wheel while stationary... not that you should do this as it is hard on components)

With a cold pressure of 105, it soon rises to 130 psi .
Pretty hard but not nearly as bad as with the 315 original tires that required 130 PSI. They went to 155 PSI. ( perhaps a cause of 2 of the failures?)

TPMS should be manditory
New Thread....

(11-17-2014 19:06)RBBuscher Wrote:  I know I could run lower air pressure. I'm trying the 110 PSI this summer. Maybe next year I'll drop it to 100 PSi.

After running 125+ in the old tires, even at 110 it ride like a dream.

(11-17-2014 02:16)davidbrady Wrote:  Bob,

Why do you run 110 psi in your steer tires? The load tables at that psi put you at a capacity of 18960 lb which I believe is far more than what your front end weighs. Have you weighed your axles with the trailer in place? I run my H3 365 steer tires at 95 psi for a load capacity of 16860 lb. I know from experience that 365's can get pretty stiff at 110 psi.