Would probably be very helpful for people asking these questions to post the exact tire they're using and have questions about.
If you're talking about knobbie pressures on asphalt, then somebody like Skierd or Shewolf might have some valuable information.
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2008 WR250X
Gearing: 13t - 48t
Power Commander 5 / PC-V
Airbox Door Removed - Flapper glued - AIS removed
FmF Q4
Bridgestone Battlax BT-003rs