Originally Posted by thestrangebrew
Getting ready to head out in about 2 hrs and I'm second guessing myself for this trip. My max rated psi is 50 psi "cold" on my Roo. I didn't get a chance to check the pressure until about 11am, outside temp at that time was around mid 80s. Pressure at that time was around 45psi in each tire. Since it's supposed to be 50 psi "cold", in mid 80s temp, is ~48 psi ok or is that too much given outside temps? Hoping for a quick response and TIA!
it sounds like you are low, not high. Air expands as it get's hotter. Your 11 am pressure would be higher than your 7 am pressure, since the ambient air temp is hotter. If it was 45psi at 11 am, then it was probably 43-44 psi at 7 am.
You want at least 50 psi in your tire currently, and tomorrow morning it may be down to 48 so you can air it up again.
As you have it now, you are less than 50, and tomorrow morning will be even lower than it is now.